Question: (10 points) Note: For this problem, your answer should be rounded to two decimal places. In a particular municipality, it is believed that 25 percent

(10 points) Note: For this problem, your answer should be rounded to two decimal places.

In a particular municipality, it is believed that 25 percent of homes are not properly insulated. In order to testH

:p=.25

H0:p=.25vs.H

:p.25

HA:p.25(wherep

pis the population proportion of homes that are not properly insulated) a random sample of 300 homes was selected. In the sample, it was found that 81 homes were not properly insulated.

If the null hypothesis is true, then the z-score for the sample proportion is:

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