Find the confidence interval specified. Assume that the population is normally distributed. Use t-distribution. 17) A sociologist develops a test to measure attitudes about public transportation, and 27 randomly selected subjects are given the test. Their mean score is 76.2 and their standard deviation is 21.4. Construct the 95% confidence interval for the mean score of all such subjects.
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We are given the mean score of the students, which is 76.2, and the standard deviation, which is 21.4. We also know that we want to construct a 95% confidence interval. Show more…
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