Author: Anonymous

Exhibit 2 Census data shows 26% of gun owners are female. From a random sample of 160 gun owners, 26 were females.

Refer to Exhibit 2. What is the shape of the sampling distribution of the proportion of female gun owners in this example?

Which of the following statements is CORRECT regarding the width of a confidence interval for a population mean?

Exhibit 1 Serial interval, in the epidemiology of contagious diseases, refers to the transmission time from one infected case to its immediate next case in a chain of infection. Think of it as a time period between a primary case developing symptoms and a secondary case developing symptoms. Assume that a study showed that the standard deviation of the serial interval of COVID-19 is 5 days which is treated as the sample standard deviation of COVID-19 serial interval.

Refer to Exhibit 2. Which of the following is a point estimate for the population proportion of female gun owners?

Refer to Exhibit 2. Let’s assume that you calculated the critical value for this test equal to -1.5. Use the test statistic you calculated earlier and the critical value of -1.5 to state the conclusion for the test.

Refer to Exhibit 2. With the p-value equal to 0.016, what would be the conclusion at a 1% significance level?

Refer to Exhibit 2. What is the critical value for this hypothesis test at a 10% significance level? Please, consult the values below.

Refer to Exhibit 2. The appropriate distribution to use for calculating the critical value and the p-value in this test is:

Refer to Exhibit 3. Based on collected information, the test statistic for the hypothesis test was computed to be equal 1.9965. How would you compute the p-value for the hypothesis test using this test statistic?