You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. Ho: MZ 10 H₂H 10 The sample size is 120 and the population standard deviation is 5. Use a = 0.05. If the actual population mean is 9, the probability of a type II error 0.2925. Suppose the researcher wants to reduce the probability of a type II error to 0.10 when the actual population mean is 10. What sample size is recommended? (Round your answer up to the nearest integer.)

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
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Chapter19: Externalities And Public Goods
Section: Chapter Questions
Problem 19.12P
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You may need to use the appropriate appendix table or technology to answer this question.
Consider the following hypothesis test.
Ho: μ ≥ 10
Ha: μ< 10
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ASWSBE14 9.E.054.
The sample size is 120 and the population standard deviation is 5. Use a = 0.05. If the actual population mean is 9, the probability of a type II error is 0.2925. Suppose the researcher wants to reduce
the probability of a type II error to 0.10 when the actual population mean is 10. What sample size is recommended? (Round your answer up to the nearest integer.)
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ASWSBE14 9.E.057.MI.
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A special industrial battery must have a life of at least 400 hours. A hypothesis test is to be conducted with a 0.02 level of significance. If the batteries from a particular production run have an actual
mean use life of 387 hours, the production manager wants a sampling procedure that only 10% of the time would show erroneously that the batch is acceptable. What sample size is recommended for
the hypothesis test? Use 30 hours as an estimate of the population standard deviation. (Round your answer up to the nearest integer.)
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Transcribed Image Text:1. 2. 1 DETAILS You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. Ho: μ ≥ 10 Ha: μ< 10 Need Help? Read It ASWSBE14 9.E.054. The sample size is 120 and the population standard deviation is 5. Use a = 0.05. If the actual population mean is 9, the probability of a type II error is 0.2925. Suppose the researcher wants to reduce the probability of a type II error to 0.10 when the actual population mean is 10. What sample size is recommended? (Round your answer up to the nearest integer.) DETAILS Need Help? Read It Watch It ASWSBE14 9.E.057.MI. o You may need to use the appropriate appendix table or technology to answer this question. A special industrial battery must have a life of at least 400 hours. A hypothesis test is to be conducted with a 0.02 level of significance. If the batteries from a particular production run have an actual mean use life of 387 hours, the production manager wants a sampling procedure that only 10% of the time would show erroneously that the batch is acceptable. What sample size is recommended for the hypothesis test? Use 30 hours as an estimate of the population standard deviation. (Round your answer up to the nearest integer.) Watch It Master It IER of the
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