A researcher conducts a hypothesis test on a population proportion.

Her null and alternative hypotheses are H₀: p = 0.6 and H_a: p < 0.6

The test statistic and p-value for the test are z = 1.51 and p-value = 0.655.

For a significance level of alpha = 0.05 choose the correct conclusion regarding the null hypothesis.

• A. None of these.
• B. There is sufficient evidence to conclude that the population proportion is significantly different from 0.6
• C. There is sufficient evidence to accept the null hypothesis that the population proportion is equal to 0.6
• D. There is insufficient evidence to reject the null hypothesis that the population proportion is equal to 0.6

*Question 2

Find the value of the test statistic z. Round to 3 decimal places.

The claim is that the proportion of drowning deaths of children attributable to beaches is 0.25 and the sample statistics include 546 drowning deaths of children with 30% of them attributable to beaches.

• A. z = -2.550
• B. z = -2.698
• C. z = 2.550
• D. z = 2.698