please help me doing this on a sheet of paper and upload it please 1. In order to reduce hostility levels, twelve students were randomly assigned to three different types of therapy. After completing a therapy, each student was given a test that recorded hostility level. A lower score indicates lower hostility and vice-versa.

	Therapy
1	2	3
80	74	62
92	81	71
87	78	72
85	77	62

Use these data for Questions on this task. Calculate the sample variance (or standard deviation) for each therapy. 2. For Hartley's test of homogenity

H_o: ₁ = ₂ = ₃ H_a: Population variances are not all equal.

calculate the test statistic F'. 3. For = 0.05, specify the critical region for Hartley's test of homogeneity and make a decision about H_o. 4. Find the P-value and compare to = 0.05.