In developing an interval estimate for a population mean, a ...

[melina_rosy]

In developing an interval estimate for a population mean, a sample of 50 observations was used. The interval estimate was 19.76  1.32 . Had the sample size been 200 instead of 50, the interval estimate would have been:
 a. 19.76  .33
  b. 19.76  .66
  c. 19.76  5.28
  d. None of these choices.

Question 2

For a multiple regression model, the following statistics are given: Total variation in y = 500, SSE = 80, and n = 25 . Then, the coefficient of determination is:
 a. 0.84 c. 0.3125
  b. 0.16 d. 0.05

[Joc]

Answer to Question 1

B

Answer to Question 2

A

[melina_rosy]

Thank you

[Joc]

No problemo