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Author Question: A population consists of 3 Democrats and 2 Republicans. Assume that samples of size 3 are randomly ... (Read 83 times)

lak

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on: Aug 2, 2018
A population consists of 3 Democrats and 2 Republicans. Assume that samples of size 3 are randomly selected with replacement from this population.
 
  Which of the following statements is (are) true?
  A: Within each sample, the proportion of Democrats will be 3/5
  B: If you list the 125 different possible samples of size 3 and find the proportion of Democrats in each sample, the mean of the 125 sample proportions will be 3/5
  C: The mean of the sampling distribution of proportions of Democrats is 3/5
  A) C only B) B and C C) All of them D) B only

Question 2

If the results of a study using the Spearman correlation coefficient were reported as rS(28) = -.44, p < .05, then which of the following statements is true?
 
  a. H0 was S = + or - .44.
  b. The X and Y variable are significantly negatively related.
  c. rS crit = + or - .44.
  d. H1 was S = 0.


shewald78

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Reply #1 on: Aug 2, 2018
Answer to Question 1

B

Answer to Question 2

B


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