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Statistics Assignment | Professional Writing Services

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January 2nd, 2020

Starbucks is considering opening a small stand on the Danvers campus but wants to be sure there are enough coffee drinkers here to make it worth their while. They are willing to open a stand here only if the proportion of all NSCC students who drink coffee exceeds the national proportion. A Gallup poll in 2015 found 64% of Americans drink coffee. Test, using a significance level of alpha =0.01 whether the proportion of NSCC students who drink coffee is higher than the national proportion.

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Dataset coffee drinkers

No,yes,yes,yes,no,no,yes,yes,yes,no,yes,yes,yes,no,yes,yes,yes,yes,no,yes,yes,yes,yes,yes,no,no,yes,yes,yes,yes,yes,yes,no,yes,yes,yes,no,yes,yes,yes.

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A. State the claim and the null and alternative hypotheses. Is the test left, right, or two-tailed?

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B. Find the sample proportion of NSCC students who answered Yes in the coffee variable.

C. Find the p-value of getting the sample data by chance.

D. Decision: reject H0 or fail to reject H0?

E. Conclude the result of the test in the context of the situation and in a statement that is understandable to a non-statistician

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