A recent survey conducted by the Country Financial Security Index ...

[soccerdreamer_17]

A recent survey conducted by the Country Financial Security Index asked adults 18 and older if they felt that next year will be financially better for them. Thirty percent of the respondents answered Yes.
 
  To verify these findings, a random sample of 250 adults was asked the same question. A total of 55 adults from this sample responded Yes. Which of the following statements is correct?A) The interval that contains 95 of the sample proportions is 0.205 and 0.395. Because the sample proportion is between these two values, we have support for the results of the Country Financial Security Index survey.
  B) The interval that contains 95 of the sample proportions is 0.205 and 0.395. Because the sample proportion is not between these two values, we do not have support for the results of the Country Financial Security Index survey.
  C) The interval that contains 95 of the sample proportions is 0.243 and 0.357. Because the sample proportion is between these two values, we have support for the results of the Country Financial Security Index survey.
  D) The interval that contains 95 of the sample proportions is 0.243 and 0.357. Because the sample proportion is not between these two values, we do not have support for the results of the Country Financial Security Index survey.

Question 2

A professor would like to test the hypothesis that the median number of minutes that a student needs to complete a statistics exam is equal to 50 minutes.
 
  The following random sample of exam times from 12 students was collected to test this hypothesis.
 
  54 62 67 43 55 59
  55 64 60 58 44 56
 
  The appropriate nonparametric procedure for this analysis is the _________________ test.
  A) Kruskal-Wallis
  B) Wilcoxon rank-sum
  C) sign
  D) Wilcoxon signed-rank

[GCabra]

Answer to Question 1

D

Answer to Question 2

C