Question: A statistics professor has 115 students in a statistics class and would like to estimate the number of hours each student studied for the last

A statistics professor has 115 students in a statistics class and would like to estimate the number of hours each student studied for the last exam. A random sample of 41 students was found to study an average of 7.3 hours with a standard deviation of 1.9 hours. The 98% confidence interval to estimate the average number of hours studying for the exam is ________.

98% confident the population mean is between 5.82 and 8.79

98% confident the population mean is between 6.72 and 7.88

98% confident the population mean is between 5.18 and 9.42

98% confident the population mean is between 6.11 snd 8.49

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