Quiz: M9-Ch14 Quiz Question 6 of 6 This quiz: 6 point(s) possible This question: 1 point(s)...

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Quiz: M9-Ch14 Quiz Question 6 of 6 This quiz: 6 point(s) possible This question: 1 point(s) possible Submit quiz Data were collected on the annual mortality rate (deaths per 100,000) for males in 61 large towns in England and Wales. The data set also notes for each town whether it was south or north of Derby. The summary statistics are given below. Is there a significant difference in mortality rates in the two regions? Answer parts a and b. Assume a significance level of a=0.05 Mean 1672.46 Group North South Count 33 28 1637.45 Median 1672 1632 Click the icon to view the boxplot of the data. StdDev 125.99 149.57 Graph/chart a) Test the null hypothesis at a=0.05 using the two-sample t-test. 2000- Identify the null and alternative hypotheses. Choose the correct answer below. 1800- OA. Hos #0 OB. Ho PN-Ps=0 1600- s=0 HA PN-HS-0 OC. Ho HAHN-HS >0 Compute the t-statistic. (Round to two decimal places as needed.) HA HN HS <0 1400- OD. Ho PN-Ps=0 HA HN-HS FO 1200- 1000- North South Print Done Quiz: M9-Ch14 Quiz Question 6 of 6 This quiz: 6 point(s) possible This question: 1 point(s) possible Submit quiz Data were collected on the annual mortality rate (deaths per 100,000) for males in 61 large towns in England and Wales. The data set also notes for each town whether it was south or north of Derby. The summary statistics are given below. Is there a significant difference in mortality rates in the two regions? Answer parts a and b. Assume a significance level of a=0.05 Mean 1672.46 Group North South Count 33 28 1637.45 Median 1672 1632 Click the icon to view the boxplot of the data. StdDev 125.99 149.57 Graph/chart a) Test the null hypothesis at a=0.05 using the two-sample t-test. 2000- Identify the null and alternative hypotheses. Choose the correct answer below. 1800- OA. Hos #0 OB. Ho PN-Ps=0 1600- s=0 HA PN-HS-0 OC. Ho HAHN-HS >0 Compute the t-statistic. (Round to two decimal places as needed.) HA HN HS <0 1400- OD. Ho PN-Ps=0 HA HN-HS FO 1200- 1000- North South Print Done