We want to test the following null and alternative hypothese…

Questions

We wаnt tо test the fоllоwing null аnd аlternative hypotheses about a population proportion: Ho: p = 0.20 Ha: p ≠ 0.20 We observe 300 successes in a sample of 1,000 observations. Assume that it is valid to use large-sample procedures in this problem. Calculate the test statistic needed to test the null hypothesis. Should we reject or not reject the Ho? Explain. Use a significance level of α = 0.05.

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