Stat HW 9

Stat HW 9 - a smaller tail probability. C. The 99% CI is...

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Question 1 1 points Save Problem 6.12, part a). Question 2 1 points Save Problem 6.12, part b), what is the margin of error of the 95% confidence interval? Question 3 1 points Save Problem 6.12, part c). A. Yes, because the runners are similar. B. No, this interval describes the average weights, not the weights of individual runners. C. No, the interval contains the weights of 95% of different runners. D. Yes, the interval contains the weights of 95% of runners, similar or different. Question 4 1 points Save Problem 6.14, what is the margin of error of the 99% confidence interval? Question 5 1 points Save Problem 6.14. A. The 99% CI is wider than the 95% CI, because it covers 99% of the population. B. The 99% CI is narrower than the 95% CI, because it has
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Unformatted text preview: a smaller tail probability. C. The 99% CI is wider than the 95% CI, because we want to be more confident that our interval captures the true mean. D. None of the abov Question 6 1 points Save Problem 6.15. What is the lower bound of the 99% confidence interval? Question 7 1 points Save Problem 6.17. What is the center of the 95% confidence interval? Question 8 1 points Save Problem 6.20 Question 9 1 points Save Problem 6.21, part a). Can we be certain that the true population percent falls in this interval? Yes No Question 10 1 points Save Problem 6.21, part c). Report it in the percentage format. For example, if your calculation is 5%, type in 5, not 0.05....
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This note was uploaded on 04/14/2008 for the course STAT 2301 taught by Professor Jung during the Spring '08 term at SMU.

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Stat HW 9 - a smaller tail probability. C. The 99% CI is...

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