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Construct a 90% confidence interval for the population mean, u. Assume the population has a normal...

Construct a 90% confidence interval for the population mean, u. Assume the population has a normal distribution has a normal distribution. In a recent study of 22 eighth-graders, the mean number of hours per week they played video games was 19.6 with a standard dev of 5.8 hours. Round to the nearest hundreth.

A (5.87, 7.98)

B (19.62, 23.12)

C (17.47,21.73)

D (18.63,20.89)

Math   Statistics-And-Probability   
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