Preliminary Data Analyses Indicate That It Is Reasonable to Use $1 \%$

question 21

Essay

Preliminary data analyses indicate that it is reasonable to use a t-test to carry out the specified hypothesis test. Performthe t-test using the critical-value approach.
-Use a $1 \%$ significance level to test the claim that $\mu > 2.85$ . The sample data consists of 9 scores for which $\bar { x } = 3.28$ and $s = 0.5$ .

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