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A researcher wants to estimate the number of hours that 5- year old children spend watching television. A sample of 50 five-year old children was

A researcher wants to estimate the number of hours that 5-

year old children spend watching television. A sample of 50

five-year old children was observed to have a mean viewing

time of 3 hours. The population is normally distributed with a

population standard deviation = 0.5 hours, find:

the best point estimate of the population mean

the 95% confidence interval of the population mean

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