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Find the critical value-test statistic

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Reference no: EM132488028

We are testing the effects of an advertising campaign. We survey 36 people and find that they spent on average $30 more on our product with a sample standard deviation of $45. Our null hypothesis is that they spent the same amount of money on average, and our alternative hypothesis is that they spent more at α=5%.

A) Find the critical value tc  

B) Find the test statistic t.

Reference no: EM132488028

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