There are 300 students enrolled in Business Statistics.Historically,exam scores are normally distributed with a standard deviation of 30.9.Your instructor randomly selected a sample of 30 examinations and finds a mean of 74.2.Determine a 90% confidence interval for the mean score for all students taking the course.
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The Answer of There are 300 students enrolled in Business Statistics.Historically,exam scores are normally distributed with a standard deviation of 30.9.Your instructor randomly selected a sample of 30 examinations and finds a mean of 74.2.Determine a 90% confidence interval for the mean score for all students taking the course.
____________________ to ____________________

There Are 300 Students Enrolled in Business Statistics