2070 Extra Credit - Tim Dubois

# 2070 Extra Credit - Tim Dubois - μ1-μ2=0 H0 μ1-μ2=0 75...

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Current Proposed 76 74 76 75 Question 2: Use t-Test: Two Sample Assuming Unequal Varianc 77 77 74 78 Question 3: 76 74 74 80 Step 1: 74 73 For t-Test 77 73 72 78 Ha: μ1-μ2≠0 78 76 73 76 For F-Test: 78 74 75 77 Ha: μ1-μ2≠0 80 69 79 76 Step 2: 72 75 For t-Test 69 72 α=.05 79 75 For F-Test 72 72 α=.05 70 76 70 72 Step 3: 81 77 76 73 t-Test: Two-Sample Assuming Unequal Variances 78 77 72 69 Current 82 77 Mean 75.07 72 75 Variance 15.56 73 76 Observations 61 71 74 Hypothesized Mean Difference 0 70 77 df 102 77 75 t Stat -0.6 78 78 P(T<=t) one-tail 0.27 73 72 t Critical one-tail 1.66 79 77 P(T<=t) two-tail 0.55 82 78 t Critical two-tail 1.98 65 78 77 76 F-Test Two-Sample for Variances 79 75 73 76 Current 76 76 Mean 75.07 81 75 Variance 15.56 69 76 Observations 61 75 80 df 60 H0:

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Unformatted text preview: μ1-μ2=0 H0: μ1-μ2=0 75 77 F 2.48 77 76 P(F<=f) one-tail 79 75 F Critical one-tail 1.67 76 73 78 77 Step 4: 76 77 C= 1.66 76 77 If F is greater than C - reject H0 73 79 If P-Value is less than .025 - reject H0 77 75 84 75 Step 5: 74 72 T-Test- do not reject H0 since p-value is less than α 74 82 69 76 79 76 Reject H0 since p-value is less than α 66 74 70 72 74 78 72 71 ces Standard D 3.94 Standard D 2.51 Degrees of Freedom n1-1 60 n2-1 60 Ha: μ1-μ2≠0 Proposed 75.43 6.28 61 Proposed 75.43 6.28 61 60 H0: μ1-μ2=0...
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2070 Extra Credit - Tim Dubois - μ1-μ2=0 H0 μ1-μ2=0 75...

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