3. Researchers are interested in estimating the average number of credit hours Freshmen take per semester. A random sample of 50 Freshmen is obtained and the average number of hours taken per semester was 14.3 with standard deviation 0.3. a. Find a 95% confidence interval for the average number of credit hours Freshmen take per semester. b. What assumption must be true in order for the above CI to be valid? How is the assumption verified? (Be specific!)
3. Researchers are interested in estimating the average number of credit hours Freshmen take per semester. A random sample of 50 Freshmen is obtained and the average number of hours taken per semester was 14.3 with standard deviation 0.3. a. Find a 95% confidence interval for the average number of credit hours Freshmen take per semester. b. What assumption must be true in order for the above CI to be valid? How is the assumption verified? (Be specific!)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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