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The amount of time adults spend watching television is closely monitored by rms because this helps to determine advertising pricing for commercials. Complete parts (a)
The amount of time adults spend watching television is closely monitored by rms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). IJ. I FIE Varlaula weenly Lime spent watcnlng television ls likely normally ulslrluuleu. 3E. The variable \"weekly time spent watching television\" is likely skewed right, not normally distributed. (h) According to a certain survey, adults spend 2.45 hours per day watching television on a weekday. Assume that the standard deviation for "time spent watching television on a weekday" is 1.93 hours. If a random sample of 40 adults is obtained, describe the sampling distribution of x, the mean amount of time spent watching television on a weekday. k is approximately normal with \"i = 2.45 and a); = 0.30516. (Round to six decimal places as needed.) (c) Determine the probability that a random sample of 40 adults results in a mean time watching television on a weekday of between 2 and 3 hours. The probability is 0.8941 . (Round to four decimal places as needed.) (d) One consequence of the popularity of the lntemet is that it is thought to reduce television watching. Suppose that a random sample of 35 individuals who consider themselves to be avid Internet users results in a mean time of 2.03 hours watching television on a weekday. Determine the likelihood of obtaining a sample mean of 2.03 hours or less from a population whose mean is presumed to be 2.45 hours. The likelihood is . (Round to four decimal places as needed.)
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