This is a group paper and I was assigned to answer a question regarding from this scenario...but Ive been in

This is a group paper and I was assigned to answer a question regarding from this scenario...but Ive been in the hospital for the past week and I'm really behind please help...

Research Data Critique Scenario One

The CEO of ABC manufacturing commissioned a study to look at the differences between the current salaries of her employees by employee job title. There were three job categories: clerical, custodial, and managerial. The study collected current salary data of the three groups and the researcher conducted a statistic and the results are presented below. Using the five steps of hypothesis testing, explain what the researcher might have done, including the appropriate analysis, and interpret the results. Are there any problems with this study? If so, explain what they are.

Average Salary

Clerical (n = 363)?$27,838.54

Custodial (n = 27)?$30,938.89

Manager (n = 84)?$63,977.80

Test statistic = 434.48, p< .05

MY QUESTION TO ANSWER: Formulate the null hypothesis and the alternative hypothesis.