Consider the following two confidence intervals for u from a normal sample. (113.8, 116.2), (113.5, 116.5)...
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Consider the following two confidence intervals for u from a normal sample. (113.8, 116.2), (113.5, 116.5) (a) What is the value of the sample mean used to construct these CIs? (b) The confidence level for one of the intervals is 95% and for the other it is 99%. Which is which, and how can you tell? (c) Consider: 20.025 = 2 and zo.005 = 2.5. We know that the sample size n = 100. Based on b), calculate the standard deviation. Consider the following two confidence intervals for u from a normal sample. (113.8, 116.2), (113.5, 116.5) (a) What is the value of the sample mean used to construct these CIs? (b) The confidence level for one of the intervals is 95% and for the other it is 99%. Which is which, and how can you tell? (c) Consider: 20.025 = 2 and zo.005 = 2.5. We know that the sample size n = 100. Based on b), calculate the standard deviation.
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a When confidence interval 1138 1162 When confidence interval 1135 1165 V... View the full answer
Related Book For
Statistics for Business Decision Making and Analysis
ISBN: 978-0321890269
2nd edition
Authors: Robert Stine, Dean Foster
Posted Date:
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