MA215 W5Assignment.docx MA215 Week 5 Assignment Grantham University MA215 Question1

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MA215 W5Assignment.docx MA215 Week 5 Assignment Grantham University MA215 Question1: In a poll of 600 voters in a campaign to eliminate non-returnable beverage containers, 210 of the voters we... re opposed. Develop a 92% confidence interval estimate for the proportion of all the voters who opposed the container control bill. 0.31568, 0.38432 Question2: A random sample of 87 airline pilots had an average yearly income of $99,400 with a standard deviation of $12,000. · If we want to determine a 95% confidence interval for the average yearly income, what is the value of t? 1.988 · Develop a 95% confidence interval for the average yearly income of all pilots. 96,842.37, 101,957.63 Question3: In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of 25 pieces of carry-on luggage was collected and weighed. The average weight was 18 pounds. As. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [Show More]

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