SCENARIO 12-1
-Referring to Scenario 12-1, the company tests to determine at the 0.05 level whether the
Population proportion has changed from the previous study.Which of the following is most
Correct?
A) Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has changed over the intervening 10 years.
B) Do not reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has not changed over the intervening 10 years.
C) Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has increased over the intervening 10 years.
D) Do not reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has increased over the intervening 10 years.

Question

SCENARIO 12-1 
-Referring to Scenario 12-1, the company tests to determine at the 0.05 level whether the
Population proportion has changed from the previous study.Which of the following is most
Correct?
A) Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has changed over the intervening 10 years. 
B) Do not reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has not changed over the intervening 10 years. 
C) Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has increased over the intervening 10 years. 
D) Do not reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has increased over the intervening 10 years.

Quizplus · Accepted Answer

The null hypothesis is that the proportion of employees who are interested in a self-improvement course has not changed over the intervening 10 years. The alternative hypothesis is that the proportion has changed. The p-value is 0.05, which means that there is a 5% chance of rejecting the null hypothesis when it is true. Since the p-value is greater than 0.05, we do not reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has not changed over the intervening 10 years.

SCENARIO 12-1 -Referring to Scenario 12-1, the Company Tests to Determine at to Determine