Question

Problem 65

Answer 1

Given information

 

	Working-class	Professional(middle class)	Professional(wealthy)
	17.8	16.5	8.5
	26.7	17.4	6.3
	49.4	22	4.6
	9.4	7.4	12.6
	65.4	9.4	11
	47.1	2.1	28.6
	19.5	6.4	15.4
	51.2	13.4	9.3
Sum	286.5	95.1	96.3

 

Step-by-step explanation

Step 1.

The null and alternative hypotheses are:

 

 

Now,