44. A regression analysis yields the line ý = 32 + 0.4x. One of the subjects, Racheal, has x = 60 and y = 52. (a) Calculate Racheal's predicted value, ĝ. (b) Calculate Racheal's residual.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question

Correct explanation.44

42. Independent random samples are selected from
two populations. Below are selected summary
statistics.
Рop.
Mean Stand. Dev. Sample size
1
62.00
10.00
17
54.00
6.00
10
(a) Construct the 95% confidence interval for
µx - HY.
(b) Obtain the P-value for the alternative
µx # µy. Show your work. You will re-
ceive no credit for simply reporting your
answer.
43. Independent random samples are selected from
two populations. Below are selected summary
statistics.
Pop. Mean Stand. Dev. Sample size
1
73.00
10.00
14
2
62.50
6.00
8
(a) Construct the 95% confidence interval for
Hx – Hy.
(b) Obtain the P-value for the alternative
µx + µY.
44. A regression analysis yields the line
ŷ = 32 + 0.4x.
One of the subjects, Racheal, has x = 60 and
y = 52.
(a) Calculate Racheal's predicted value, ŷ.
(b) Calculate Racheal's residual.
45. A regression analysis yields the line
ŷ = 18 + 0.25x.
One of the subjects, Mary, has x = 40 and y
32.
(a) Calculate Mary's predicted value, ĝŷ.
(b) Calculate Mary's residual.
Transcribed Image Text:42. Independent random samples are selected from two populations. Below are selected summary statistics. Рop. Mean Stand. Dev. Sample size 1 62.00 10.00 17 54.00 6.00 10 (a) Construct the 95% confidence interval for µx - HY. (b) Obtain the P-value for the alternative µx # µy. Show your work. You will re- ceive no credit for simply reporting your answer. 43. Independent random samples are selected from two populations. Below are selected summary statistics. Pop. Mean Stand. Dev. Sample size 1 73.00 10.00 14 2 62.50 6.00 8 (a) Construct the 95% confidence interval for Hx – Hy. (b) Obtain the P-value for the alternative µx + µY. 44. A regression analysis yields the line ŷ = 32 + 0.4x. One of the subjects, Racheal, has x = 60 and y = 52. (a) Calculate Racheal's predicted value, ŷ. (b) Calculate Racheal's residual. 45. A regression analysis yields the line ŷ = 18 + 0.25x. One of the subjects, Mary, has x = 40 and y 32. (a) Calculate Mary's predicted value, ĝŷ. (b) Calculate Mary's residual.
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON