In order to determine whether or not there is a significant difference between the mean hourly wages paid by two companies (of the same industry), the following data have been accumulated. At the 5% level of significance, the null hypothesis
A) should be rejected.
B) should not be rejected.
C) should be revised.
D) should not be tested.

Question

In order to determine whether or not there is a significant difference between the mean hourly wages paid by two companies (of the same industry), the following data have been accumulated.  ​ At the 5% level of significance, the null hypothesis
A) should be rejected. 
B) should not be rejected. 
C) should be revised. 
D) should not be tested.

Quizplus · Accepted Answer

Without the actual data and test results, it is not possible to determine whether the null hypothesis should be rejected or not. However, at the 5% level of significance, if the calculated p-value is less than or equal to 0.05, then the null hypothesis should be rejected in favor of the alternative hypothesis, indicating a significant difference between the mean hourly wages paid by the two companies. Therefore, choice A is the best answer.

In Order to Determine Whether or Not There Is a Significant