myOpenMath Home | My Classes . | User Settings | Log Out Course Calendar Gradebook Home > MAT 161 WB1 Spring 2022 > Assessment Weekly quiz: May 6 Progress s Score: 0/29 0/6 answered Question 1 GO In a random sample of 70 members of the Statsburgh Republican Party, 39 said they would support raising the speed limit in downtown Statsburgh to 45 miles per hour. In a random sample of 65 members of the Statsburgh Democratic Party, 23 said they would support raising the speed limit. Construct a 95%% confidence interval for the difference between p1, the proportion of Statsburgh Republicans who want to raise the speed limit and p2, the proportion of Statsburgh Democrats who want to raise the speed limit. Answer: We are 95% confident that MAT 161 WB1 Spring 2022 > Assessment Weekly quiz: May 6 Progre Score: 0/29 0/6 answered Question 4 In a random sample of 27 adult men from Centerville, the mean weight was 180 pounds, with a sample standard deviation of 10 pounds. In a random sample of 20 adult men from Statsburgh, the mean weight was 164 pounds, with a sample standard deviation of 13 pounds. Both samples appeared to be normally distributed. Construct a 9% confidence interval for the difference between /1, the mean weight of all adult men from Centerville, and /2, the mean weight of all adult men from Statsburgh. Round your answers to the nearest tenth of a pound. Answer: We are 9% confident that /1 - /2 lies between pounds and pounds. Submit Question 80 Q O DII DD F2 F3 4 F5 F6 F7 F8 FO @ $ A & N 4 5 7 9 W R TCourse Calendar Gradebook Home > MAT 161 WB1 Spring 2022 > Assessment Weekly quiz: May 6 Pro Score: 0/29 0/6 answered Question 3 In a random sample of 90 students at Wild West College, 9 came from coastal states. In a random sample of 150 students at Eastern Elite University, 32 came from coastal states. A hypothesis test is conducted at the a = 0.01 significance level to determine whether the proportion of all WWC students who come from coastal states is less than the proportion of all EEU students who come from coastal states. What is the critical region for this hypothesis test? Oz 2.575 Oz. 2.33 Submit Question U DII F2 F3 4 F 5 F6 F 8 a % & W # 4 5 6 8Course Calendar | Gradebook Home > MAT 161 WB1 Spring 2022 > Assessment Weekly quiz: May 6 Progres Score: 0/29 0/6 answered Question 5 The amounts of cola in a random sample of 34 cans of Chugga-Cola from the Centerville bottling plant appear to be normally distributed with sample mean 12.62 ounces and sample standard deviation 0.02 ounces. The amounts of cola in a random sample of 15 cans of Chugga-Cola from the Statsburgh bottling plant appear to be normally distributed with sample mean 11.99 ounces and sample standard deviation 0.05 ounces. Find the margin of error for a 95% confidence interval for the difference between the mean amount of cola in all cans from the Centerville plant and the mean amount of cola in all cans from the Statsburgh plant. Round your answer to four decimal places. Answer: E = Submit Question SO DII DD F2 3 F4 5 F6 F7 F 8 @ % N 3 4 5 6 8 9 W E R T Y UCourse Calendar | Gradebook Home > MAT 161 WB1 Spring 2022 > Assessment Weekly quiz: May 6 Progress Score: 0/29 0/6 answered Question 2 In a random sample of 100 residents of Centerville, 12 held post-graduate degrees. In a random sample of 150 residents of Statsburgh, 30 held post-graduate degrees. A hypothesis test is conducted to determine whether the proportion of all Centerville residents who hold post-graduate degrees is less than the proportion of all Statsburgh residents who hold post-graduate degrees. Find the value of the test statistic for this hypothesis test. Answer: The test statistic is z = Submit Question EO. 20 DI F3 F4 F6 F7 FB F9 @ # $ % 8 N 3 4 6 8 W E R T Y U