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For the data in Exercise 1 a Test the null hypothesis
For the data in Exercise 1,
a) Test the null hypothesis at α = 0.05 using the pooled ttest. (Show the tstatistic, Pvalue, and conclusion.)
b) Find a 95% confidence interval using the pooled degrees of freedom.
c) Are your answers different from what you previously found in Exercise 9? Explain briefly why or why not.
a) Test the null hypothesis at α = 0.05 using the pooled ttest. (Show the tstatistic, Pvalue, and conclusion.)
b) Find a 95% confidence interval using the pooled degrees of freedom.
c) Are your answers different from what you previously found in Exercise 9? Explain briefly why or why not.
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