Question
178 students were surveyed and asked what their test scores were. The mean score of the students was 78, with a standard deviation of 4.7.
178 students were surveyed and asked what their test scores were. The mean score of the students was 78, with a standard deviation of 4.7. Determine a 95% confidence interval for the mean.
We are 95% confident that the true mean test score is between___ and ___.
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Managerial Decision Modeling With Spreadsheets
Authors: Nagraj Balakrishnan, Barry Render, Jr. Ralph M. Stair
3rd Edition
9780136115830
