Suppose the test scores of 75 students in a class follows normal distribution with a standard...
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Suppose the test scores of 75 students in a class follows normal distribution with a standard deviation of 3. The sample mean is 68. What distribution is used in constructing confidence intervals in this problem? z-distribution What is Maximal Margin of Error (E) at 95% confidence? [ Select] Construct a 95% confidence interval (67.32101,68.67896) Suppose the test scores of 75 students in a class follows normal distribution with a standard deviation of 3. The sample mean is 68. What distribution is used in constructing confidence intervals in this problem? z-distribution What is Maximal Margin of Error (E) at 95% confidence? [ Select] Construct a 95% confidence interval (67.32101,68.67896)
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Related Book For
Elementary Statistics in Social Research Essentials
ISBN: 9780205638000
3rd edition
Authors: Jack A. Levin, James Alan Fox
Posted Date:
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