Answer:
D. The small p value and the small effect size suggest that the observed difference between the drug placebo groups are likely to be due to sampling error. This study should be replicated with a larger sample size.
Step-by-step explanation:
The p value is determined for any test before making a conclusion. If the p-value is smaller than critical value then we reject the null hypothesis which means that drug is not effective for the reducing depression. A very small p-value usually lesser than 0.05 indicates strong evidence against the null hypothesis.
Six Sigma is comprehensive approach to quality goal setting that involves statistics. An article in Aircraft Engineering and Aerospace Technology (Vol. 76, No. 6, 2004) demonstrate the use of the normal distribution in Six Sigma goal setting at Motorola Corporation. Motorola discovered that the average defect rate for parts produced on an assembly line varies from run-to-run and is approximately normally distributed with a mean equal to 3 defects per million. Assume that the goal at Motorola is for the average defect rate to vary no more than 1.5 standard deviations above or below the mean of 3. How like is it that the goal will be met?
Answer:
0.8664 = 86.64% probability that the goal will be met.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Assume that the goal at Motorola is for the average defect rate to vary no more than 1.5 standard deviations above or below the mean of 3. How like is it that the goal will be met?
It should be within 1.5 standard deviations of the mean, which means that the probability is the pvalue of Z = 1.5 subtracted by the pvalue of Z = -1.5.
Z = 1.5 has a pvalue of 0.9332
Z = -1.5 has a pvalue of 0.0668
0.9332 - 0.0668 = 0.8664
0.8664 = 86.64% probability that the goal will be met.
Plz I need help with this how would I go about solving this I really need the answer today thank you will give brainlest
Find the value of x,given the area of the quadrilateral
Answer:
x = 9
Step-by-step explanation:
The quadrilateral given above is a parallelogram.
Area of the quadrilateral = area of parallelogram = base × height
Area = 63 cm²
base = 7 cm
height = x
Plug in the values into the equation:
x × 7 = 63
7x = 63
7x/7 = 63/7
x = 9
If using the method of completing the square to solve the quadratic equation
x? + 15x + 25 = 0, which number would have to be added to "complete the
square"?
Answer:
31.25
Step-by-step explanation:
The general form of a complete square would be (x + a)^2 + b
Given an equation of X^2 + 15X + 25 = 0,
the idea is to reduce it into the form if (X + C)^2
which can be expanded into X^2 + 2XC + C^2
In this case 15 will be our 2C So our c will be 7.5.
Substituting in these numbers,
We have X^2 + 15X + (7.5)^2 = 0
However our original equation has 25 for its C^2, thus
we need to add 31.25 in order to get (7.5)^2
FYI
The final completed form will be (X + 7.5)^2 - 31.25
Sasha saved $28.34 in November and $39.57 in December. By the end of
January, she wants to have saved $100. How much money does she need
to save in the month of January? Make sure to include your work, number
sentences, and your answer with words.
Answer:
$32.09
Step-by-step explanation:
It's $32.09 because, 39.57-28.34=67.91. And 100-67.91= 32.09. Goodluck!
Which choice is a graph of the solution set for 12 - X < 8?
Pleaseeeee helpppppp NUMBER 14
Answer:
B
Hope this helps!
explanation:
we solve the inequality and to do that we must first subtract 12 from both sides, which gets us -x<-4, then we divide both sides by -1, which gives us x>4, since we have to flip the sign when we divide by a negative. when we graph this, there will be a circle around 4 and the arrow pointing to the right, since it's greater than.
Branliest to correct answer explain how to solve it please
In general, nCr = n! / r! (n-r)!
Here, 7C3 = 7! / 3!(7-3)!
=7 x 6 x 5 x 4 x 3 x 2 x 1 /3 x 2 x 1 ( 4 x 3 x 2 x 1)
=7x6x5x4 / 4x3x2
=7x5x6x4 / 24
=35x24 / 24
=35
Can someone help me? I’ll reward points + brainalist
Answer:
B
Step-by-step explanation:
2 CDs - $9.98
5 CDs - [tex]\frac{5}{2}[/tex] × $9.98 = $24.95 (Option B)
Answer:
B.
Step-by-step explanation:
Cost of 2 CD = 9.98
cost of 1 CD = 9.98/2 =4.99
Cost of 5 CD = 4.99 × 5 = 24.95
Cahit ve Elifin de aralarında bulunduğu 6 kişi yan yana
sıralanacaktır.
Cahit ve Elif arasında en çok 1 kişi bulunması şartıyla kaç
farklı çekilde sıralanırlar?
A) 418 B) 420 C) 432 D) 572 E) 700
Answer:
A
Step-by-step explanation:
говорить на английском
15x5>75 truth or false
Answer:
False
Step-by-step explanation:
Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making mistakes
Answer:
Step-by-step explanation:
(h+2)+9
b-(6-4)
Please help! (I also put what a median is)
Answer:
Step-by-step explanation:
1. 2
2. 3
3. 6
4. 2
5. 4
half the shoes in one store were on sale what percent of the shoes were their ordinary price
Answer:
i dont get it the are no answer choices nor are there numbers lolololol
Step-by-step explanation:
Can someone help me with question 19 and 21 please?
diameter of a circle is 42 inches what is the circumference
Hi there!
[tex]\large\boxed{42\pi \text{in or } 131.88 \text{in}}[/tex]
Use the equation C = dπ to calculate the circumference:
d = diameter
C = circumference
C = 42 · π = 42π in, or 131.88 in (π ≈ 3.14)
3(x - 2) – 2x + 3 = -12
Answer:
hii
Step-by-step explanation:
3(x-2)-2x+3=-12
3 times x = 3x
3 times -2 = -6
3x-6-2x+3=-12
3x + 2x = 5x
-6 + 3 =-3
i don't know the rest I'm sorry
5/6 minus (- 3/4)
HELP PLS
Answer:
In order to solve this problem, you have to find the lowest common denominator. Take multiples of both 6 and 4 and see which is the lowest you have in common.
4: 4, 8, 12, 16, 20
6: 6, 12, 18, 24
So 12 is the lowest common multiple....
5/6 x ?/? = ?/12 (you have to multiply the numerator and the denominator by the same number)
3/4 x ?/? = ?/12 (you have to multiply the numerator and the denominator by the same number)
When the denominators are the same, you can subtract the numerators. The denominator will stay 12!
Step-by-step explanation:
YAY! I want a brain
Answer:
Exact Form: 19/12
Decimal form:1.583
Mixed number form: 1 7/12
Step-by-step explanation:
hope i was right!
If Carl earns $42 in 3 hours, how much will he earn in 1 hour? Explain
Answer:
14$
Step-by-step explanation:
42 divided by 3 is 14
4,000 as a product of power of 10
Answer:
4,000 to the tenth power is 1.045876E36
Step-by-step explanation:
Help? Please I don’t get this
Round the fraction to 0, 1/2, or 1.
9/10
Answer:
round to 1
Step-by-step explanation:
it is closest to 1 so it wouldnt make sense to round to a number farther away
please help me please i really need help please
Answer:
5.2
Step-by-step explanation:
a^2+b^2=c^2
a^2+3^2=6^2
a^2+9=36
-9. -9
-----------------
square root a^2 = square root 27
a= 5.1961524227
a = 5.2
Mike had a coupon for 20% off the price of a shirt at a certain store.
. On the day he went, the store was also having a sale.
The original price of the shirt was $25.50.
• The price after the coupon and the additional discount was $18.36.
.
Answer:
7.14
Step-by-step explanation:
A cube has a side length of 3.5 cm. What is the surface area of the cube?
Answer:
73.5
Step-by-step explanation:
3.5 times 3.5 = 12.25
Multiply 12.25 by 6 since there are 6 faces with the same surface area to get 73.5 as your answer.
can somebody help me with this, I am on a test.. on math:
Which expression has a solution of 56, if r = 8?
options:
1. 8 r
2. 7 r
3. 6 r
4. 9 r
Answer:
7 r hhfjgujksjzjxjxofhxjdd
The money spent on gym classes is proportional to the number of gym classes taken. Max spent 45.90 to take 6 gym classes. What is the amount of money. in dollars, spent per gym class ?
A: 0.13
B: 6
C: 7.65
D: 15:30
Please help will mark brainliest.
Answer: 0.13
Step-by-step explanation:
Hey all!
Please only answer if you know the answer, the comment section is right below. Please don't waste my points!
Also, please show all of your work, you are trying to help me better understand the concept, not just give me the answer.
The image is down below. Show work! Thanks!
Answer:
65°Step-by-step explanation:
Use the law of cosines:
cos C = (25² + 27² - 28²)/(2*25*27)cos C = 0.4222m∠C = arccos 0.4222m∠C = 65°Alexis is going to Vegas for the weekend! She decides to try her hand at a new game that Casino QuickCash is promoting. For this game, you pay $6 to play. A dealer shuffles and then randomly draws a card from a standard deck of 52 cards. If the card drawn is a diamond, Alexis wins nothing. If the card drawn is an even-numbered card (2,4,6,8, or 10) from the remaining three decks, Alexis wins $8. Otherwise, Alexis wins $12. a) Alexis's expected winnings per game is (rounded to the nearest cent):
Answer:
$10.46
Step-by-step explanation:
Amount that can be won by Alexis ( xi ) = $0, $8 , $12
probability ( pi )
P( $0 ) = 13 / 52 = 1 / 4
P( $8 ) = 15 / 39 ( given that she wins this when an even number is drawn from three remaining decks )
P ( $12 ) = 1 - 15/39 = 24 / 39
a) Alexis expected winnings per game
= ∑ xi * pi = ( 0 * 1/4 ) + ( 8 * 15/39 ) + ( 12 * 24 / 39 )
= $0 + ( 120 / 39 ) + ( 288 / 39 ) = $10.46
Given m = 3/2 and the point (0, -6), which of the following is the point-slope form of the equation?
Answer:
Step-by-step explanation:
The equation of a line in
point-slope form
is.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
∣
∣
∣
2
2
y
−
y
1
=
m
(
x
−
x
1
)
2
2
∣
∣
∣
−−−−−−−−−−−−−−−−−−−−−−
where m represents the slope and
(
x
1
,
y
1
)
a point on the line
here
m
=
−
2
and
(
x
1
,
y
1
)
=
(
3
,
0
)
⇒
y
−
0
=
−
2
(
x
−
3
)
⇒
y
=
−
2
(
x
−
3
)
←
in point-slope form
What is the solution to the system of equations?
y = 2/3x + 3
x=-2.