Question

Asked Dec 11, 2019

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The Harvard School of Public Health conducted a survey of 2770 adults in the United States to determine the proportion of Americans who own guns. According to the results, *Injury Prevention*in 2007 reported that 26% of adults own at least one gun. State and estimate the population parameter using both a point estimate and a 99% confidence interval estimate.

Step 1

It is given that the sample of adults, *n* is 2,770, the proportion of Americans who own guns is 26% that is 0.26 and the confidence level is 0.01.

The parameter of point estimate (*p*) = p-hat = 0.26.

**The critical value is obtained below:**

Procedure for finding the *z*-value from two tailed is listed below:

- From the table of standard normal distribution, locate the probability value of 0.01.
- Move left until the first column is reached. Note ...

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