# Hypothesis Testing of Proportions: Two sample Z Test

A committee studying employer-employee relations proposed that each employee would rate his or her immediate supervisor and in turn the supervisor would rate each employee. To find reactions regarding the proposal, 120 office personnel and 160 plant personnel were selected at random. Seventy-eight of the office personnel and 90 of the plant personnel were in favor of the proposal. Computed z = 1.48. At the 0.05 level, it was concluded that there is sufficient evidence to support the belief that the proportion of office personnel in favor of the proposal is greater than that of the plant personnel

True or False

and if you can provide the solution steps. thank you

© BrainMass Inc. brainmass.com October 10, 2019, 2:47 am ad1c9bdddfhttps://brainmass.com/statistics/z-test/hypothesis-testing-proportions-two-sample-test-393519

#### Solution Preview

Please see the attachments.

Hypothesis testing

A committee studying employer-employee relations proposed that each employee would rate his or her immediate supervisor and in turn the supervisor would rate each employee. To find reactions regarding the proposal, 120 office personnel and 160 plant personnel were selected at random. Seventy-eight of the office personnel and 90 of the plant personnel were in favor of the proposal. Computed z = 1.48. At the 0.05 level, it was concluded that there is sufficient evidence to support the ...

#### Solution Summary

The solution provides step by step method for the calculation of testing of hypothesis. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.