Question

SECTION 9-4 4. Researchers measured skulls from different time periods in an attempt to determine whether interbreeding of cultures occurred The results are given below. Use a 0.05 significance level to test the claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A.D. 150. 4000 B.C. (: n,28, 132.47 mm, s, = 4.95 mm A.D. 150. ( n 28, = 137.52 mm, s, = 6.49 mm STEP 1: ORIGINAL CLAIM: STEP 2: OPPOSITE OF ORIGINAL CLAIM: STEP 3: 1. Null Hypothesis ): 2. Alternative Hypothesis ): STEP 4: Select a significance level of =. STEP 5: Since we are testing a claim about two population variances, we will use the distribution. STEP 6: Calculate the test statistic to 4 decimal places:

Answer 1

Hi Dear,
I have given my 100% to solve your problem.
So, please help me out by just thumbs up.
Thank you, so much

Step). The banation of maximal shell breadths. in 4000 B.Co is the same as the younation. In A.D. 150 Step 2 The variation of mandmal skolu 1 bread the in 4600 B.C is not same as the vanation in A-D. 150 Step (2) Ho : 6,2 62 ♡ Hi : 62762² step q . L = 0.05 Steps - distribusion Step-(6) F = S2 - 66.49) 5² Test steetistic = F = 1.7190 (9.952 Step (7) p-veel we = 0.1657 since p-youne is significance level the hull hypothesis. greater the we fail to reject