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Consider a normal population distribution with the value of a known. USE SALT (a) What is the confidence level for the interval x + 2.880/√n? (Round your answer to one decimal place.) % (b) What is the confidence level for the interval X 1.470/ √n? (Round your answer to one decimal place.) % (c) What value of Za/2 in the CI formula below results in a confidence level of 99.7%? (Round your answer to two decimal places.) (x-²α/2" + Z 음) (d) Answer the question posed in part (c) for a confidence level of 70%. (Round your answer to two decimal places.) ²a/2 You may need to use the appropriate table in the Appendix of Tables to answer this question.

Consider a normal population distribution with the value of a known. USE SALT (a) What is the confidence level for the interval x + 2.880/√n? (Round your answer to one decimal place.) % (b) What is the confidence level for the interval X 1.470/ √n? (Round your answer to one decimal place.) % (c) What value of Za/2 in the CI formula below results in a confidence level of 99.7%? (Round your answer to two decimal places.) (x-²α/2" + Z 음) (d) Answer the question posed in part (c) for a confidence level of 70%. (Round your answer to two decimal places.) ²a/2 You may need to use the appropriate table in the Appendix of Tables to answer this question.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
Problem 58CR
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Consider a normal population distribution with the value of a known. (a) What is the confidence level for the interval x + 2.880/ √n? (Round your answer to one decimal place.) % USE SALT (b) What is the confidence level for the interval x ± 1.470/ √n? (Round your answer to one decimal place.) % za/2 (c) What value of Za/2 in the CI formula below results in a confidence level of 99.7%? (Round your answer to two decimal places.) (x-²α/2" (d) Answer the question posed in part (c) for a confidence level of 70%. (Round your answer to two decimal places.) za/2 You may need to use the appropriate table in the Appendix of Tables to answer this question. Need Help? Read It Watch It Master It
Transcribed Image Text:Consider a normal population distribution with the value of a known. (a) What is the confidence level for the interval x + 2.880/ √n? (Round your answer to one decimal place.) % USE SALT (b) What is the confidence level for the interval x ± 1.470/ √n? (Round your answer to one decimal place.) % za/2 (c) What value of Za/2 in the CI formula below results in a confidence level of 99.7%? (Round your answer to two decimal places.) (x-²α/2" (d) Answer the question posed in part (c) for a confidence level of 70%. (Round your answer to two decimal places.) za/2 You may need to use the appropriate table in the Appendix of Tables to answer this question. Need Help? Read It Watch It Master It
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