Employees of TransPacific Inc. build a computer by inserting several subassemblies into a computer frame. Testing of the computer is completed in a different department. Executives of TransPacific think that employees would have more pride in their work if they performed both assembly and testing tasks. A sample of 25 employees was selected to test the idea. Twenty indicated higher job satisfaction when assembling and testing the computer; five employees rated their work as less satisfying. At the .10 level, can we conclude that employee job satisfaction increased?

a. State the null and alternate hypotheses.

b. State the decision rule.

c. What is the result of the analysis?

d. Interpret the results.