Lex be a random variable that represents the pH of arterial plasma (le, acidity of the blood). For healthy adults, the mean of the distribution is - 7.4.1 A new drug for arthritis has
been developed. However, it is thought that this drug may change blood pH. A random sample of 31 patients with arthritis took the drug for 3 months. Blood tests showed that x = 8.6 with
sample standard deviations - 2.7. Use a 5% level of significance to test the claim that the drug has changed (either way) the mean pH level of the blood.
USE SALT
(a) what is the level of significance?

what is the value of the sample test sisse? (Round your answer to three decimal places)

Answers

Answer 1

Answer:

2.304

Step-by-step explanation:


Related Questions

Sara receive 78 vote in the school election been received 23 fewer votes than sorrow how many student votes

Answers

Answer:

101

Step-by-step explanation:

78+23=101 coz were add together

the sum of 8 and 7 double​

Answers

Answer: 30

Step-by-step explanation:

(8+7) x 2

= 15 x 2

= 30

The answer is going to be 30

A machine printed 63 booklets every 6 hours. At this rate, which proportion could be used to determine x, the number of booklets that the machine can print in 9 hours?

Answers

63 books every 6 hours=> 63/6 x booklets in 9 hours => x/9 so, 63/6 = x/9 and your answer is A.

I need the answer plzz

Answers

Answer:

The correct coordinates are (3, 4).

Gabriela may have reflected Figure ABCD across the x-axis.

Step-by-step explanation: Looked at graph.

Hope this helps!

If you do this, I'll give you the crown.
Solve each problem.
The classroom had 25 glue sticks. If the ratio of glue sticks to glue bottles was 5 : 2, how many glue bottles did the classroom have?


Answer:

A student finished 8 of her homework problems in class. If the ratio of problems she finished to problems she still had left was 4 : 1, how many homework problems did she have total?


Answer:

A recipe called for the ratio of sugar to flour to be 7 : 3. If you used 63 ounce of sugar, how many ounces of flour would you need to use?


Answer:

Write an equation for each using the variables provided.
For each pound there are 16 ounces.
Write an equation to express the total number of ounces (Z) in (Y) pounds.

Equation:


Every dollar is 4 quarters.
Write an equation to express the total number of quarters (Q) in dollars (D).

Equation:


Word Problems. You must show your work and answer to get full credit.
Henry and Grace had the same amount of money. After Henry spent $28 and Grace spent $16, the ratio of the amount of money Henry had to the amount of money Grace had was 2 : 5. How much money did each of them have at first?

You may create a tape diagram to help you.
(copy & paste)

Henry:

Grace:



Three clerks can type six documents in 12 days. At this rate, how long will it take for two clerks to type three such documents?

Answers

The classroom had 25 glue sticks. If the ratio of glue sticks to glue bottles was 5 : 2, how many glue bottles did the classroom have?

5 sticks / 2 bottles

25 sticks / x bottles

10 bottles

Answer:  10 bottles

A student finished 8 of her homework problems in class. If the ratio of problems she finished to problems she still had left was 4 : 1, how many homework problems did she have total?

8 finished

4 finished / 1 left

8 finished / 2 left

10 total

Answer:  10 total problems

A recipe called for the ratio of sugar to flour to be 7 : 3. If you used 63 ounce of sugar, how many ounces of flour would you need to use?

7 sugar / 3 flour

63 oz sugar / x oz flour

27 oz flour

Answer:  27 oz flour

Write an equation for each using the variables provided.

For each pound there are 16 ounces.

Write an equation to express the total number of ounces (Z) in (Y) pounds.

1 lb / 16 oz

Z = 16Y

Equation:  Z = 16Y

Every dollar is 4 quarters.

Write an equation to express the total number of quarters (Q) in dollars (D).

1 dollar = 4 q

Q = 4D

Equation:  Q = 4D

Word Problems. You must show your work and answer to get full credit.

Henry and Grace had the same amount of money. After Henry spent $28 and Grace spent $16, the ratio of the amount of money Henry had to the amount of money Grace had was 2 : 5. How much money did each of them have at first?

You may create a tape diagram to help you.

(copy & paste)

( H - 28 ) / ( G - 16 ) = 2 / 5

H - 28 = 2

H = 30

G - 16 = 5

G = 21

Henry:  30

Grace:  21

Three clerks can type six documents in 12 days. At this rate, how long will it take for two clerks to type three such documents?

3 clerks take 12 days to write 6 docs

1 clerk takes 4 days to write 2 docs

2 clerks take 8 days to write 4 docs

8 : 4

3/4 * ( 8 ) : ( 4 ) * 3/4

6 : 3

6 days

Write an equation of a line in slope-intercept form that passes through the point (-2, 4) and has a slope of -3. (no spaces in your answer)

Answers

Answer:

y = - 3x - 2

Step-by-step explanation:

Step 1:

y = mx + b     Slope Intercept Form

Step 2:

y = - 3x + b     Input Slope

Step 3:

4 = - 3 ( - 2 ) + b     Input x and y

Step 4:

4 = 6 + b     Multiply

Step 5:

- 2 = b       Subtract 6 on both sides

Answer:

y = - 3x - 2

Hope This Helps :)

12/3×11/3 why the exponents can not be added

Answers

Answer:

The bases are not the same.

Step-by-step explanation:

12/3 is not equal to 11/3

Therefore we cannot add the exponents together.

Hope I helped :)

Answer:

(see below)

Step-by-step explanation:

12³ × 11³ is NOT equivalent to (12 × 11)[tex]^{3(3)}[/tex] because:

1) 12³ and 11³ don't have the same bases. They have to both have a base of 11 or of 12.

2) 12³ × 11³ and (12 × 11)[tex]^{3(3)}[/tex] are different because (12 × 11)[tex]^{3(3)}[/tex] is a whole different number altogether. Here's why:

12³ × 11³ = 1728 × 1331

              = 2,299,968

(12 × 11)[tex]^{3(3)}[/tex] = [tex](132)^{9}[/tex]

                  = 1.216649217 × [tex]10^{19}[/tex]

However, (12 × 11)³ would be equivalent to 12³ × 11³.

(12 × 11)³ = (132)³

               = 2,299,968

A game you want is on sale for 15% off.if the regular price is $50.00,how much will you save?and what will the total sale price be?

Answers

Answer:

you will save 7.50$ and the total sale will be 42.50

Step-by-step explanation:

if syringes cost 2.10 dollars a dozen how many would 40 cost

Answers

Answer:

Step-by-step explanation:

It’s $6.82 I believe

you got to add $2.10 three times and you get $6.30

then divide the 2.10 with the remaining 4 syringes and youll get $6.82

Hope this helped

Look it up on google

The Tigers defeated the Dodgers in a baseball game that lasted 9 innings. By how many runs were the Dodgers defeated? Use the scorecard to help you answer the question.A.
2 runs
B.
3 runs
C.
4 runs
D.
5 runs

Answers

Answer:

It is D.

Step-by-step explanation:

your welcome

Tigers =  1 + 2 + 0 + 3 + 0 + 2 + 1 + 0 + 2 = 11

Dodgers = 0 + 0 + 4 + 1 + 2 + 0 + 1 + 0 + 0 = 8

11 - 8 = 3

B. 3 Runs

3. Jean purchased 6 yards of felt to make banners. Each banner requires 1 1/2 yards. How many
banners can she make?
A. 2
B. 4
C. 6
D. 9

Answers

B.

Explanation:

1.5+1.5=3+1.5= 4.5+1.5= 6

(How much 1.5 is there?) (1.5=1 1/2 btw)

Suppose 1 in 10 people on campus have blonde hair. In 20 random encounters, what is the probability of meeting at least one person with blonde hair?

Answers

Answer:

2/20 people

Step-by-step explanation:

that should be right

The American Society of PeriAnesthesia Nurses (ASPAN; www.aspan.org) is a national organization serving nurses practicing in ambulatory surgery, preanesthesia, and postanesthesia care. The organization's membership is listed below.
State/Region Membership
Alabama 114
Arizona 261
Maryland, Delaware, DC 319
Connecticut 183
Florida 654
Georgia 313
Hawaii 58
Maine 98
Minnesota, Dakotas 335
Missouri, Kansas 324
Mississippi 52
Nebraska 125
North Carolina 342
Nevada 66
New Jersey, Bermuda 321
Alaska, Idaho, Montana, Oregon, Washington 893
New York 690
Ohio 798
Oklahoma 201
Arkansas 74
Illinois 632
Indiana 216
Iowa 76
Kentucky 155
Louisiana 161
Michigan 304
Massachusetts 530
California 1,110
New Mexico 93
Pennsylvania 631
Rhode Island 75
Colorado 344
South Carolina 264
Texas 1,120
Tennessee 122
Utah 45
Virginia 304
Vermont, New Hampshire 192
Wisconsin 316 West Virginia 63
Use statistical software to answer the following questions.
a. Find the mean, median, and standard deviation of the number of members per component. (Round your answers to 1 decimal places.)
Mean?
Median?
Standard deviation?
b-1. Find the coefficient of skewness, using the software method? (Round your answer to 2 decimal places.)
Coefficient of skewness?
b-2. What do you conclude about the shape of the distribution of component size?
Mild positive skewness or Mild negative skewness
(d-1) Are there any outliers?
One, Zero, Three, Four, Two
(d-2) What are the limits for outliers? (Round your answers to 1 decimal place. Negative amounts should be indicated by a minus sign.)

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data :

114, 261, 319, 183,654,313,58,98,335,324,52,125,342,66,321,893,690,798,201,74,632,216,76,155,161,304,530,1110,93,631,75,344,264,1120,122,45,304,192,316,63

USING CALCULATOR :

The mean(m) of the data: = ΣX/n

n = sample size = 40

m = 12974/40

m = 324.4

Median = ((n + 1)/2) th term = 41/2 = (20 + 21)th term / 2

= (261 + 264) / 2 = 262.5

Standard deviation (s) = sqrt(Σ(x - m)²/n))

s = 281. 74

B.) Coefficient of skewness (Ks) :

3(mean - median) / standard deviation

3(324.4 - 262.5) / 281.74

= 0.66

Mild positive skewness Given a positive skew Coefficient value.

(d-1) Are there any outliers?

Yes

Four outliers

(d-2) What are the limits for outliers? (Round your answers to 1 decimal place. Negative amounts should be indicated by a minus sign.)

Lower bound = Q1 - (1.5 * IQR)

Upper bound = Q3 + (1.5 * IQR)

IQR = Q3 - Q1

Q3 = upper quartile = 343 ; Q1 = 106 ; Q2 = 262.5

IQR = 343 - 106 = 237

Lower bound = 106 - (1.5 * 237) = - 249.5

Upper bound = 343 + (1.5 * 237) = 698.5

-249.5 ≤ X ≤ 698.5

What is 8/23/25 as decimal

Answers

9514 1404 393

Answer:

  0.01_3913043478260869565217...

Step-by-step explanation:

The value of 8/23/25 is a repeating decimal with a repeat of 22 digits.

  [tex]\dfrac{8}{23}\div25=0.01\overline{3913043478260869565217}[/tex]

choose 1 item to purchase. what is the greatest number of that item you can buy with a $10 and still receive change? how much change will you receive?​

Answers

Answer:

Step-by-step explanation:

PLEASE HELP
A cleaning spray contains 1/2 cup of vinegar for every 4 teaspoons of lemon oil

how many cups of vinegar are needed for 2 teaspoons of lemon oil?

Answers

Answer:

1/4 cup of vinegar for 2 tsp of lemon oil

Step-by-step explanation:

got it right on I-ready

and the Rate in cups of vinegar per teaspoons of lemon oil is 1/8

Sarah traveled 145 miles in
2.5 hours. How fast was
Sarah driving?
Ma

Answers

Answer:

58 mph

Step-by-step explanation:

145/2.5=1450/25=58

If M is the midpoint of AB and AM = 3x -1 and AB =5 x + 2, find x, AM, MB, and AB.

Answers

AB = 2x + 3

Just subtract the 3x - 1 from 5x + 2 = 2x + 3 is AB

x = 2

AB = 12

MB = 7

AM = 5

Hope this helps.

The ratio table below shows the number of eggs per omelette
how many omelettes can be made with 18 eggs?

4
6
9
12

Answers

Answer:

9

Step-by-step explanation:

18/ 2= 9

Let A(-1,5) and B(6,-2) be the endpoints of a segment. What are the
coordinates for the midpoint M? Explain how you calculated your answer
pls help!

Answers

-1



You put -1,5 on top of 6,-2 then u subtract so basically-1-6=-7 and 5- -2=7 so -7 over 7 you divide both by 7 to make it in simple form so it’s -1

What’s another name for plane P?

Answers

Answer:

trapezium maybe

Step-by-step explanation:

plzz mark me brainliest, need it to level up

it is expected that gas prices will rise to be 142% of the current amount. If the current gas price is $4 per gallon, explain how to estimate the expected price of gas.

Answers

The answer is 54 iybiybyibyib

Answer:

$5.68

Step-by-step explanation:

142% of the current price of $4 per gallon is found by multiplying these numbers:

 142% × $4.00/gal = $5.68/gal

_____

Of course, you know that 142% = 142/100 = 1.42. The numbers get multiplied and the units ($/gal) get applied to the result.

Multiplication by 4 is easily done mentally by doubling twice:

 4×1.42 = 2×(2×1.42) = 2×2.84 = 5.68

Tanmayi wants to raise $190 for a school fundraiser. She has raised $140 so far. How much more does she need to reach her goal? Let m be how much more is needed.

Answers

Answer:

190 plus x = 140 -140               -140 x=50

x/5-g=a isolate x PLS

Answers

i assume isolate means to get x on its own? if so, here’s the answer:

x=5(a+g)

if i misunderstood isolate let me know!

If we increase our food intake, we generally gain weight. Nutrition scientists can calculate the amount of weight gain that would be associated with a given increase in calories. In one study, 16 nonobese adults, aged 25 to 36 years, were fed 1000 calories per day in excess the calories needed to maintain a stable body weight. The subjects maintained this diet for 8 weeks, so they consumed a total of 56,000 extra calories. According to theory, 7700 extra calories will translate into a weight gain of 1 kilogram. Therefore, we expect each of these subjects to gain 56000/7700=7.3 kilograms. The weights in kilograms before and after the 8-week period are shown below:

ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Before: 55.7 54.9 59.6 62.3 74.2 75.6 70.7 53.3 73.3 63.4 68.1 73.7 91.7 55.9 61.7 57.8
After: 61.7 58.8 66.0 66.2 79.0 82.4 74.3 59.3 79.1 67.0 73.4 76.9 93.1 63.0 68.3 60.3



(1) For each subject, manually calculate the weight gain subtracting the weight before from the weight after.

Answers

1,346 calories hope this helps

Find:1/15÷4/120
Select one:
A. 4
B. 1
C. 3
D. 2​

Answers

Answer:

D) 2

Step-by-step explanation:

1/15×120/4

1/15×30

1×2

2

The answer is D. 2
Hope this helps :)

hey,what is bisexual

Answers

It means that you like boys and girls
When you are attracted to men and women emotionally and sexually.

-6(x + 3) + 10 < -2
what does x equal

Answers

Answer:

x will be -1

How it is written: x > -1

Estimate by rounding the first factor to the nearest ten. Then enter the product.

77 × 5


The estimate is _______


The product is ________

Answers

Answer:

estimate - 400

product - 385

Step-by-step explanation:

estimate - 77 rounds up to 80

80*5=400

product - 70*5=350

7*5=35

350+35=385

Answer:

The estimate is 390 while the real product is 385

For a statistics project a community college student at Diablo Valley College decides to investigate cheating in two popular majors at DVC: business and nursing. She selects a random sample of nursing and business courses and convinces the professors to distribute a short anonymous survey in their classes. The question about cheating is one of many other questions about college life.

When the student summarizes the data, she finds that 42 of the 50 business students and 38 of the 70 nursing students admitted to cheating in their courses. Can the student proceed with the calculation of the confidence interval for the difference in population proportions?

Answers

Answer:

The student can proceed with the calculation of the confidence interval for the difference in population proportions. This is because, from the data she has, 3/4 of the Business students admitted to cheating while 1/2 of the Nursing students admitted to cheating also.

This is above the average number of students in her given sample size which is valid for extrapolation to the College Majors being investigated.

Step-by-step explanation:

Other Questions
The area of a square shaped yard is 201.5 ft2. Which measurement is closest to the side length of this yard in feet? ClevelandInc. leased a new crane to Abriendo Construction under a 5-year, non-cancelable contract starting January 1, 2020. Terms of the lease require payments of $48,555 each January 1, starting January 1, 2020. The crane has an estimated life of 7 years, a fair value of $240,000, and a cost to Cleveland of $240,000. The estimated fair value of the crane is expected to be $45,000 (unguaranteed) at the end of the lease term. No bargain purchase or renewal options are included in the contract, and it is not a specialized asset. Both Cleveland and Abriendo adjust and close books annually at December 31. Collectibility of the lease payments is probable. Abriendos incremental borrowing rate is 8%, and Clevelands implicit interest rate of 8% is known to Abriendo. Discuss what should be presented in the balance sheet, the income statement, and the related notes of both the lessee and the lessor at December 31, 2020. when do you think coronavirus will end ANSWER MY STUPID QUESTIONS1 . he bones of the inner ear are commonly known as the hammer, anvil, and stirrup. The anatomically correct terms for the three bones of the inner ear are ossicles, eardrum, and oval window oval window, auditory canal, and ossicles malleus, incus, and stapes stapes, cochlea, and oval window incus, stapes, and cochlea Answer this for my sister again Don't skip need help ASAP and pls hurry will give 10 pts + BrainliestAfter watching Taking a tour of Egypt, you were told you had to live there for a year in order to be promoted at your job which makes a six-figure salary, would you live there in order to take the promotion? What specific places would you want to visit? Would you think it would be hard adjustment living there compared to living in the United States? Why or why not? BTW you don't have to necessarily have to watch the video. Why is a thesis statement so important? What purpose does it serve? What is the process by which heat moves through Earths mantle causing tectonic plates to move?Question 9 options:radiationconvectionplate faultingcontinental drift If there are 12 eggs per carton, then how many eggs do we have in 5 cartons? The first time we went to Disneyland, we couldn't go on every ride because we ran out of time. So we took a vote to decide which rides to go on first. It was a tough and expensive lesson. Next time, we'll be first in line when the park opens.You are helping a classmate edit this story. Your classmate decides to change the point of view and write the story from the third-person point of view as if the story happened to a group of friends. What change is necessary?Group of answer choicesa)The pronoun we should be changed to I.b)Names of the friends should be included.c)Explain in more detail the lesson the friends learned.d)The pronoun we should be changed to they. Is squash a annual, biennial, or perennial? The use of illegal or harmful drugs is called what Which expression is equal to (x/2) (x+2/3) Madagascar is an island lying about 1,000 miles south of Socotra. The people are Saracens who worship Mahomet. They have four sheikhsthat is to say, four elderswho exercise authority over the whole island. . . . It is said to measure about 4,000 miles in circumference. The people live by trade and industry. naniniwala ako na mahalaga matutunan ang karunung bayan sapagkat? dugtukan Question 2When an object exerts a force on another object, the second force is OABpairedBoppoosite in directionequalDall other answers Describe important strategies to use when critically listening and reading literature.Explainthe value in critical listening and viewing. Nancy is buying a new pair of boots. The store is having a sale and all boots are 20% off. Which expression represents the sale price of the boots where x is the original price of the boots? Ginny the Dog: A Hero Among HeroesHeroes come in many shapes and forms, but they all do uncommon things in unusual situations. They stand out. We've all heard stories of hero dogs that save their owners. One dog saved his owner by fighting off an alligator. Another woke his sleeping family when a fire broke out in its home. Still others rescue injured or needy people in dangerous situations. One dog even managed to call 911 when his owner suffered a seizure. But one dog, named Ginny, performed heroic acts on a regular basis, not just once or twice in unusual situations. Because of her kindness, many lives were saved.Ginny the dog was adopted by her owner from an animal shelter in 1990. Within days of bringing her home, her owner discovered that Ginny seemed to be able to find cats in distress. On her daily walks, Ginny would often find abandoned, trapped, or endangered kittens or cats that needed rescuing. In one such episode, Ginny found a group of kittens trapped in a pipe. She managed to let her owner know, by scratching and barking at the pipe, that something needed her help. Because of Ginny, all the kittens were saved.Almost daily, Ginny would find cats that needed rescuing or, in some cases, a little love. Ginny's owner reported that when Ginny saw a cat on their walks, she would pull away from her leash and run after the cat. 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Ginny gave her owner much pleasure during her life. Ginny looked for and rescued cats that needed help. Ginny was dedicated to saving all types of animals. Which of the following transactions was not part of the triangular trade between Europe, Africa, and the Americas? A. Finished goods from Europe were used to purchase slaves in Africa. B. Slaves from Africa were used to produce raw materials in the Americas. C. Raw materials from the Americas were shipped to Europe. D. Slaves from the Americas were sold in Africa in exchange for finished goods.