Copy and paste output from Excel and answer questions

The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal.Research question:Are the mean annual attendance rates the same for employees in these three departments?

Budgets	Payables	Pricing
278	215	250
260	260	268
275	220	233
245	240	266
268	255	223
	227	252
	266	234
	251	259
	250
	218