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Author Question: In developing an interval estimate for a population mean, a sample of 50 observations was used. The ... (Read 126 times)

melina_rosy

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on: Jun 24, 2018
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


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Joc

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Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

A


melina_rosy

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Reply #2 on: Jun 24, 2018
Thank you


Joc

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Reply #3 on: Jun 24, 2018
No problemo


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