Interpret computer output The following MINITAB output presents a 95 confidence interval for the difference between two means a Is this a left tailed test, a right tailed test, or a two tailed test b How many degrees of freedom did MINITAB use c What is the P value d Can you reject H0 at the 0 05 level Two sample T for Population1 vs Population2 N Mean StDev SE Mean Population1 55 16 48435 10 23430 1 52564 Population2 47 18 32197 8 38450 1 22301 Difference mu (Treatment1) mu (Treatment2) Estimate for difference 1 83762 95 upper bound for difference 2 22314 T Test of difference 0 (vs 0) T Value 0 997 P Value 0 161 DF 99

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Question: Interpret computer output: The following MINITAB output presents a 95% confidence interval for the difference between two means. a. Is this a left-tailed test, a

Interpret computer output: The following MINITAB output presents a 95% confidence interval for the difference between two means. Two-sample T for Population1 vs Population2 N Mean StDev SE Mean Population1

a. Is this a left-tailed test, a right-tailed test, or a two-tailed test?

b. How many degrees of freedom did MINITAB use?

c. What is the P-value?

d. Can you reject H0 at the α = 0.05 level?

Two-sample T for Population1 vs Population2 N Mean StDev SE Mean Population1 55 16.48435 10.23430 1.52564 Population2 47 18.32197 8.38450 1.22301 Difference mu (Treatment1) - mu (Treatment2) Estimate for difference: -1.83762 95% upper bound for difference: 2.22314 T-Test of difference = 0 (vs < 0): T-Value = -0.997 P-Value = 0.161 DF 99 =

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