The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statistics include n = 575 drowning deaths of children with 30 percent of them attributable to beaches.. find the value of the test statistic z using

Given that the claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25 , and the sample statistics include n = 575 drowning deaths of children with 30 percent of them attributable to beaches.

The value of the test statistic z is given by



Therefore, the value of the test statistics is 2.769