Problem 4. A researcher wishes to see whether there is a difference in the ave age of managers, supervisors, and secretaries at a certain com Employees are randomly selected, and their ages are recorded as s in the table below. At a=0.05, can the researcher conclude tho average ages of the three groups differ? Manager Supervisor Secretaries 60 33 23 36 29 25 29 34 26 56 29 35 32 27 42 54 41 21 58 50 45 a. State the Null and Alternate hypothesis b. What is a=? c. Determine your degrees of freedom Between groups and degre freedom Within groups.

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