Juanita is a 28-year old female college graduate from the South. Molly is a 28-year female college graduate from the West. Jennifer is a 28-year female college graduate from the Midwest. (i) Construct a 95% confidence interval for the difference in expected earnings between Juanita and Molly. (ii) Explain how you would construct a 95% confidence interval for the difference in expected earnings between Juanita and Jennifer.
Answers
Answer:
Hello your question has some missing information attached below is the missing information
answer :
i) ( 0.158 , - 1.018 )
ii) the difference in expected earnings can be computed as
( [tex]X_{6,A} - X_{5,C} ) = \beta _{0} + \beta _{6} - ( \beta _{0} - \beta _{5} ) = \beta _{6} - \beta _{5}[/tex]
Step-by-step explanation:
i) Construct a 95% confidence interval ( between Juanita and Molly )
Expected difference in earnings = ( X[tex]_{6}[/tex][tex]_{,A}[/tex] - X[tex]_{6.B}[/tex]) = [tex]\beta _{0}[/tex]= ( [tex]\beta + \beta _{6}[/tex] )
∴ 95% confidence interval
-0.43 ± 1.96 * 0.30 = [ -0.43 ± 0.588 ] = ( 0.158 , - 1.018 ) ( hence confidence interval at 95% = 1.96 )
ii) Construct a 95% confidence interval ( between Juanita and Jennifer )
Juanita is a student from the south and Jennifer is a student from Midwest
therefore the difference in expected earnings can be computed as
( [tex]X_{6,A} - X_{5,C} ) = \beta _{0} + \beta _{6} - ( \beta _{0} - \beta _{5} ) = \beta _{6} - \beta _{5}[/tex]
therefore a 95% confidence interval can be calculated with the above regression model.
Related Questions
I need help with this plz
Answers
Answer:
-5.3, -5/2, 72%, sqrt52, then 49
Step-by-step explanation:
edge 2020
p.s. pls mark brainliest, and have a good day! :)
Please help me
Grade is 6th or 7th
Answers
Answer:
1 a)8 miles per hour 1 b) 1 hour and 90 minutes 2 a) 24 hours and 6minutes 2 b) 3hours 3 a) 260 hours and 45 minutes 3 b) 40 minutes
Step-by-step explanation:
I don't know for sure if this is all correct but at least you'll have something to write down
Answer:
1a. 8 miles per hour
1b. 32 km per hour
2a. 28 miles
2b. 3 hours
3a. 2925
3b. 1/4 hour or 15 minutes
Step-by-step explanation:
For number 1a, think of 2 1/2 hours equals 20 miles as 2 1/2x=20. The x being hours, and the 20 being 20 miles. You want the equation to become x=?. So you divide 2 1/2x=20 by 2 1/2 to make the equation start with x=. You end up with x=8. Or you could just think of it as divide 20 miles by 2 1/2 hours. Either way, you end up with 8 miles per hour. For number 1b, you do the same thing as before, but you have to make 4 hours and 45 minutes a fraction. So, the are 60 minutes in an hour, so the fraction would be 45/60. Then you simplify that down to 3/4. So, 152 km divided by 4 3/4 is 32 km per hour.
For number 2a, set aside 30 minutes for now. She can go 24 miles in 3 hours. Because 8 miles times 3 hours equals 24 miles. It’s like instrad of 8 miles per hour, it’s 24 miles per 3 hours. Then, because 30 minutes is half of an hour, 8 divided by 2 would make it 4 miles per half an hour. So 24 plus 4 is 28 miles. For number 2b, you want to know how many hours it took to travel 1980 miles. Since you already knowmthat is takes one hour to go 660 miles, pretend that each 660 miles is one hour. So you divide 1980 by 660 so see how many one hours fit. You get 3. So, an airplane can fly 1980 miles in 3 hours.
For number 3a, like 2a, you basically multiply the constant speed by the full hours then the fraction, and add them together. You could also just multiply the constant speed by the number 3 3/4. That way you get the miles per 3 3/4 hours. 3 3/4 times 780 is 2925. So the plane can fly 2925. For number 3b, to get the 2 miles per ? hours, you have to divde 8 by 4 to get to 2. So you divide 1 hour by 4 to get the answer. So it’s 1/4, (one fourth of an hour) or 15 minutes 1/4 of 60 (the amount of minutes in an hour) for Mary to go 2 miles.
A restaurant owner creates an advertisement promising $25 to take part in a food taste testing trial. The owner selects the first seven people who reply to the advertisement. Which of the following is true? (3 points)
a
It is not a valid sample because it does not tell the type of food.
b
It is not a valid sample because it is not a random sample of the population.
c
It is a valid sample because the first seven people were selected to participate.
d
It is a valid sample because money was offered to participants.
Answers
Find the percent of change. round to the nearest tenth of a percent if necessary
60 to 240
Answers
Answer: 75%
Step-by-step explanation:
First: work out the difference (decrease) between the two numbers you are comparing.
Decrease = Original Number - New Number
Then: divide the decrease by the original number and multiply the answer by 100.
% Decrease = Decrease ÷ Original Number × 100
Decrease =240- 60
Decrease = 180
180 /240=0.75 * 100 = 75%
The percent of decrease = 75%
subtract the fractions
7/39 1/42
Answers
Answer:
7/39-1/42= 85/546
Step-by-step explanation:
so its 85/546
Answer:
7/39 1/42
so it's 85/546
(F)x= -4x^2 - 8x - 8 find -3 • f(-1)
Answers
Answer:
12
Step-by-step explanation:
-3[-4 + 8 - 8] = -3(-4) = 12
Classify the following triangle. Check all that apply.
Answers
Answer
C, D
Step-by-step explanation:
It's a right triangle b/c one of the angles are 90 degrees.
It's Isosceles b/c 2 of the sides are the same length.
(Edited) (thank you to the poster of this question for reminding me that right triangles cannot be acute)
You flip a coin then you roll a fair six-sided die. What is the probability the coun landa heads-up and the die shows an even number?
Answers
Answer:
16.7 or 17%
Step-by-step explanation:
Flipping a coin and landing heads up has a probablity of 1/2
Rolling an even number's probability is 1/3
Multiply 1/3 * 1/2 and you get 1/6
1 / 6 = .167 or 16.7%
PLS Help quick!!
Austin keeps a right conical basin for the birds in his garden as represented in the diagram. The basin is 40 centimeters deep, and the angle
between the sloping sides is 77º. What is the shortest distance between the tip of the cone and its rim?
A. 177.8 cm
B. 64.3 cm
C. 50.3 cm
D. 51.1 cm
E. 41.1 cm
Answers
Answer:
Option D. 51.1 cm
Step-by-step explanation:
Please see attached photo for explanation.
In the attached photo, c is the distance between the tip of the cone and its rim.
The value of c can be obtained as follow:
Angle θ = 38.5°
Adjacent = WY = 40 cm
Hypothenus = WZ = c =?
Cos θ = Adjacent / Hypothenus
Cos 38.5 = 40 / c
0.7826 = 40 / c
Cross multiply
0.7826 × c = 40
Divide both side by 0.7826
c = 40 / 0.7826
c = 51.1 cm
Thus, the distance between the tip of the cone and its rim is 51.1 cm.
Answer:
Option D. 51.1 centimeters
Step-by-step explanation:
Correct answer for plato users
find the surface area of puzzlecube 5.7
Answers
Answer:
9units squared
Step-by-step explanation:
A standard rubix cube is 3 by 3 and therefor 3 x 3 is 9
Find the perimeter of a rectangle with a length that is fifteen more than ten times the width
Answers
Step-by-step explanation:
let the width be x
length= 10x+ 15
perimeter = 2(l+b)
= 2(10x+ 15 + x)
2(11x+15)
=22x+30
Step-by-step explanation:
soorrry I don't knowwqwww
Mrs. Miller and 8 of her closest friends are taking a
Yoga class. The total cost for the class is $78.75.
Write and solve a multiplication equation to show
the cost per person for the Yoga class.
Answers
Answer:
f f f f f ff f f ff f f ff f f f f f f
Step-by-step explanation:
Helppppp!!!!!!
Select all TRUE statements about a dot plot.
A. You can find the median.
B. You can find the mean.
C. You can find the exact range.
D. You can tell if the data is generally symmetrical or not.
E. This is the most efficient way to show a LOT of data values.
Answers
Answer:C
Step-by-step explanation:because normally the highest and lowest point can easily be obtained
Plz, help. In the picture below.
Answers
Answer:
I don't know sorry
Step-by-step explanation:
2) A 0.4 kg ball moves in horizontal circle of radius 3 mat speed of 100m/s. What
is the centripetal force?
file the
Answers
9514 1404 393
Answer:
1333.3 N
Step-by-step explanation:
The centripetal acceleration is given by ...
a = v^2/r
a = (100m/s)^2/(3 m) = (10^4)/3 m/s^2
Then the force on the ball is ...
F = Ma = (0.4 kg)(10^4)/3 kg·m/s^2 ≈ 1333.3 N
What is the theoretical probability (as a decimal rounded to the nearest hundredths place) of wearing one unique outfit?
Answers
Answer:
For a theoretical probability we need results of experiments
A tower is braced by a 30 ft. wire that is attached to the ground 5
feet from the base of the tower. How
tall is the tower?
Answers
Answer:
it may be 35ft
Step-by-step explanation:
yh it may be 35y
Please help, brainliest for correct answer
Answers
Answer:
The volume of the cone would be 2513.27 cubic feet.
Jonathan went shopping for a new pair of pants. Sales tax where he lives is 4.75%. The price of the pair of pants is $20. Find the total price including tax. Round to the nearest cent.
Answers
Answer:
20.95$
Step-by-step explanation:
To find the total price we need to find 4.75% of the 20 and to do that we need to multply 20 with 4.75 and divide it by 100
20 × 4.75 ÷ 100 = 0.95
20$ + 0.95$ = 20.95$
interest earned on both the principal and any previously earned interest?
a. compound interest
b. simple interest
c. interest rate
d. principal
Answers
Answer:
A. Compound Interest
Step-by-step explanation:
Compound interest is interest paid on both the principal and previously earned interest.
Compound interest earned on both the principal and any previously earned interest. Therefore, the correct answer is option A.
What is the rate of interest?An interest rate tells you how high the cost of borrowing is, or high the rewards are for saving. So, if you're a borrower, the interest rate is the amount you are charged for borrowing money, shown as a percentage of the total amount of the loan.
Compound interest is the interest on savings calculated on both the initial principal and the accumulated interest from previous periods.
The formula used to find the compound interest = [tex]A=P(1+\frac{r}{100})^{nt}[/tex]
Therefore, option A is the correct answer.
To learn more about the rate of interest visit:
brainly.com/question/28236069.
#SPJ2
ILL GIVE THE BRAINLIEST pls help me with this question just tell me which one is the right answer you can show your work if you want to you don't have to EVERYTHING IS IN THE PICTURE PLS HELP DUE TODAY
Answers
Answer:
second choice is the answer
Step-by-step explanation:
ILL GIVE BRAINLYIST TO WHOEVER ANSWERS THIS RIGHTTT PLEASE HELP
Answers
Answer:
128
Step-by-step explanation:
Do 10*8=80
8*6=38 48/2=24
80+24+24
104+24
128
ILL GIVE BRANILESST PLZ
Select the correct answer from each drop-down menu.
A system of linear equations is given by the tables.
<
у
х
у
-5
10
-8
-11
-1
2
-2
-5
ol
1
-2
11
-22
7
4
X
The first equation of this system is y=
v
The second equation of this system is y= x -
The solution to the system is (
Answers
Answer:
1: -2
2: -3
(-2,-3)
Step-by-step explanation:
You borrow $600 to buy a canoe. The simple annual interest rate is 5%. You pay off the loan after 4 years of equal monthly payments. How much is each payment?
Answers
Answer:
Amount of each payment = $15 each month
Step-by-step explanation:
Given:
Amount borrow = $600
Simple rate = 5% = 0.05
Number of year = 4 year
Payment method = monthly payment
Find:
Amount of each payment
Computation:
Total amount after 4 year = P + PRT
Total amount after 4 year = 600 + (600)(4)(0.05)
Total amount after 4 year = 600 + 120
Total amount after 4 year = $720
Number of total month = 4 x 12
Number of total month = 48
Amount of each payment = Total amount after 4 year / Number of total month
Amount of each payment = $720 / 48
Amount of each payment = $15 each month
144 in the ratio 3:4
Answers
Answer: 132
Step-by-step explanation:
Use the distributive property to write an expression that is equivalent to 9(c+5
Answers
Answer:
9c+45
Step-by-step explanation:
The best fit line is given by the equation y=0.5x+0.4
, where y represents the distance in miles, and x represents the time for the trip in minutes.
Use the best fit line to estimate the distance for a trip that takes 20 minutes.
Enter your response in the box. Give the answer to the tenths place.
miles
Answers
Answer:
The anwser is 10.4
Step-by-step explanation:
0.5(20)+0.4
An object is moving at a speed of 7100 kilometers per minute. Express this speed in miles per second
Answers
Answer:
73.5
Step-by-step explanation:
7100 km = 4411.735 miles 1 minute = 60 secs 4411.735/60 = 73.5 miles/sec.
Draw a histogram for the intervals 16-18, 19-21, 22-24, and 25-27 using the following data: 26, 16, 22, 27, 20, 24, 21, 27, 22, 21, 26, 27, 23, 20, 16, 17, 27, 19, 17, 17
Answers
Answer:
Step-by-step explanation:
Class Interval Variate Frequency
16-18 16 1
19-21 0 0
22-24 0 0
25-27 26,27 2
Answer:
A
Step-by-step explanation:
right on edge 2021
Hurry only 5 minutes!
Why would you bring non science people?
A:To prove that anyone can come to Mars
B: To learn what the others are doing
C: To get money for future mission work
D: So they could go back to Earth and tell everyone how cool it was
Answers
Answer:
B
Step-by-step explanation: