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Hypothesis Test

Please review the attached problem and help.

A department store manager claims that at least 45% of persons who visited this store make a purchase. In a sample of 400 persons who visited the store 150 made a purchase. Test the manager's claim at the 3% significance level.

a. State the null and alternate hypothesis.
b. Determine the rejection region for the decision rule.
c. Which equation listed below would you use?
d. Using the statistical calculator or manual calculation what is the observed statistic and what is your decision regarding the null hypothesis? Provide a one sentence answer.

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A department store manager claims that at least 45% of persons who visited this store make a purchase. In a sample of 400 persons who visited the store 150 made a purchase. Test the manager's claim at the 3% significance level.

a. State the null and alternate hypothesis.
1.
2.
3.
4.

The null hypothesis is the default hypothesis. In this case, it is that at least 45% of people make a purchase. Therefore, H0 is p ≥ 0.45. The alternative hypothesis is the opposite of the null hypothesis. This means that in this case, the ...

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