Question
The mean television viewing time for Americans is 15 hours perweek (Money, November 2003). Suppose a sample of 40 Americansis taken to further investigate viewing habits. Assume thepopulation standard deviation for weekly viewing time is o = 3hours. a. What is probability the sample mean will be within 1hour of the population mean (to 4 decimals)? b. What is the probability the sample mean will bewithin 45 minutes of the population mean (to 4 decimals)? The mean television viewing time for Americans is 15 hours perweek (Money, November 2003). Suppose a sample of 40 Americansis taken to further investigate viewing habits. Assume thepopulation standard deviation for weekly viewing time is o = 3hours. a. What is probability the sample mean will be within 1hour of the population mean (to 4 decimals)? b. What is the probability the sample mean will bewithin 45 minutes of the population mean (to 4 decimals)?
Explanation / Answer