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fQuestion 28 You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe opulation proportion is approximately p -

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\fQuestion 28 You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe opulation proportion is approximately p - 0.89. You would like to be 98% confident that your esimate is within 2.5% of the true population proportion. How large of a sample size is required? Hint: Video [+] Submit QuestionQuestion 31 nonzerorands expects 3 arguments ments Nationally, patients who go to the emergency room wait an average of 6 hours to be admitted into the hospital. Do patients at rural hospitals have a different waiting time? The 14 randomly selected patients who went to the emergency room at rural hospitals waited an average of 5 hours to be admitted into the hospital. The standard deviation for these 14 patients was 1.5 hours. What can be concluded at the the Q - 0.01 level of significance level of significance? a. For this study, we should use | Select an answer b. The null and alternative hypotheses would be: Ho: ? Select an answer H1: 7 v Select an answer allery Exam Proctor c. The test statistic |? v - (please show your answer to 3 decimal places. io) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? a f. Based on this, we should |Select an answer ~ | the null hypothesis. uition g. Thus, the final conclusion is that ... it The data suggest the populaton mean is significantly different from 6 at or - 0.01, so there is statistically significant evidence to conclude that the population mean waiting time to be ible admitted into the hospital from the emergency room for patients at rural hospitals is different from 6 hours. Notebook The data suggest that the population mean awaiting time to be admitted into the hospital from the emergency room for patients at rural hospitals is not significantly different from 6 eck hours at o = 0.01, so there is statistically insignificant evidence to conclude that the population mean waiting time to be admitted into the hospital from the emergency room for er Forms patients at rural hospitals is different from 6 hours. The data suggest the population mean is not significantly different from 6 at a - 0.01, so there is statistically insignificant evidence to conclude that the population mean waiting time to be admitted into the hospital from the emergency room for patients at rural hospitals is equal to 6 hours. Hint: Helpful Videos: Calculations 7 [+] Setup ? [+] Interpretations ) [+] Help 2

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