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Author Question: Developing countries tend to have A) shrinking overall populations. B) large populations of young ... (Read 351 times)

leilurhhh

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on: Jun 29, 2018
Developing countries tend to have
 A) shrinking overall populations.
  B) large populations of young people.
  C) an increasing number of older people.
  D) stable, unchanging populations.

Question 2

Suppose that you wanted to run a two-tail test so that you were 95 percent confident of your result. You are using a 5-point rating scale, and your sample of 144 respondents had a mean score of 2.13 with a standard deviation of 0.56 on question 1 . on the survey. The critical t value is 1.96 . The confidence interval about the mean for this survey question is APPROXIMATELY:
 a. 1.03 to 3.27
 b. 1.86 to 2.97
 c. 2.04 to 2.22
 d. none of these choices.


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samiel-sayed

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Reply #1 on: Jun 29, 2018
Answer to Question 1

B

Answer to Question 2

c


leilurhhh

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Reply #2 on: Jun 29, 2018
Correct answers!


samiel-sayed

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Reply #3 on: Jun 29, 2018
Great! Please up vote :D


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