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Question

An economist wishes to determine if the mean retirement age has increased from 62. To conduct the relevant test,

she takes a random sample of 7 Americans who have recently retired and computes the value of the test statistic as t = 1.92. What is the decision and conclusion at the 5% significance level?



Do not reject the null hypothesis; she can conclude that the mean retirement age has not changed from 62.

Reject the null hypothesis; she cannot conclude that the mean retirement age has not increased from 62.

Reject the null hypothesis; she can conclude that the mean retirement age has increased from 62.

Do not reject the null hypothesis; she cannot conclude that the mean retirement age has not increased from 62.

Top Answer

option (d) is correct answer : do not reject the... View the full answer

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