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.
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.
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Transcribed Image Text:42. Independent random samples are selected from
two populations. Below are selected summary
statistics.
Pop. Mean Stand. Dev. Sample size
1
62.00
10.00
17
2
54.00
6.00
10
(a) Construct the 95% confidence interval for
Hx - HY.
(b) Obtain the P-value for the alternative
µx + HY. 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
y = 52.
60 and
(a) Calculate Racheal's predicted value, ŷ.
(b) Calculate Racheal's residual.
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