Majesty Video Production Inc. wants the mean length of itsadvertisements to be 24 seconds. Assume the distribution of adlength follows the normal distribution with a population standarddeviation of 2 seconds. Suppose we select a sample of 15 adsproduced by Majesty. a. What can we say about the shape of thedistribution of the sample mean time? b. What is the standard errorof the mean time? c. What percent of the sample means will begreater than 25.50 seconds? d. What percent of the sample meanswill be greater than 22.50 seconds? e. What percent of the samplemeans will be greater than 22.50 but less than 25.50 seconds?
