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Studies show that massage therapy has a variety of health benefits and it is not too expensive. A sample of 11 typical one-hour massage therapy sessions showed an average charge of $58. The population standard deviation for a one-hour session iso = $4.5. (a) What assumptions about the population should we be willing to make if a margin of error is desired? O We should be willing to make the assumption that the population is at least approximately bimodal. O We should be willing to make the assumption that the population is at least approximately uniform. We should be willing to make the assumption that the population is at least approximately normal. O We should be willing to make the assumption that the population is at least approximately skewed right. O We should be willing to make the assumption that the population is at least approximately skewed left. (b) Using 95% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.) $ (c) Using 99% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.)

Studies show that massage therapy has a variety of health benefits and it is not too expensive. A sample of 11 typical one-hour massage therapy sessions showed an average charge of $58. The population standard deviation for a one-hour session iso = $4.5. (a) What assumptions about the population should we be willing to make if a margin of error is desired? O We should be willing to make the assumption that the population is at least approximately bimodal. O We should be willing to make the assumption that the population is at least approximately uniform. We should be willing to make the assumption that the population is at least approximately normal. O We should be willing to make the assumption that the population is at least approximately skewed right. O We should be willing to make the assumption that the population is at least approximately skewed left. (b) Using 95% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.) $ (c) Using 99% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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You may need to use the appropriate appendix table or technology to answer this question. Studies show that massage therapy has a variety of health benefits and it is not too expensive. A sample of 11 typical one-hour massage therapy sessions showed an average charge of $58. The population standard deviation for a one-hour session is o = $4.5. (a) What assumptions about the population should we be willing to make if a margin of error is desired? We should be willing to make the assumption that the population is at least approximately bimodal. We should be willing to make the assumption that the population is at least approximately uniform. We should be willing to make the assumption that the population is at least approximately normal. We should be willing to make the assumption that the population is at least approximately skewed right. We should be willing to make the assumption that the population is at least approximately skewed left. (b) Using 95% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.) (c) Using 99% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.)
Transcribed Image Text:You may need to use the appropriate appendix table or technology to answer this question. Studies show that massage therapy has a variety of health benefits and it is not too expensive. A sample of 11 typical one-hour massage therapy sessions showed an average charge of $58. The population standard deviation for a one-hour session is o = $4.5. (a) What assumptions about the population should we be willing to make if a margin of error is desired? We should be willing to make the assumption that the population is at least approximately bimodal. We should be willing to make the assumption that the population is at least approximately uniform. We should be willing to make the assumption that the population is at least approximately normal. We should be willing to make the assumption that the population is at least approximately skewed right. We should be willing to make the assumption that the population is at least approximately skewed left. (b) Using 95% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.) (c) Using 99% confidence, what is the margin of error in dollars? (Round your answer to the nearest cent.)
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