Please help with the following problems. Provide the solution in an Excel spreadsheet.
The amount of time spent by North American adults watching television per day is normally distributed with a mean of 6 hours and a standard deviation of 1.5 hours.
(a) What is the probability that a randomly selected North American adult watches television for more than 7 hours per day?
(b) W11at is the probability that the average time watching television by a random sample of five North American adults is more than 7 hours?
(c) What is the probability that in a random sample of five North American adults, all watch television for more than 7 hours per day?
[PLEASE SEE THE EXCEL SPREAD SHEET ATTACHED.]
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The solution file is attached.
See attached file for diagram
(a) m = 6, s = 1.5, x = 7
z = ...
This solution aids with using excel functions to solve probability problems. A Complete, Neat and Step-by-step Solution is provided in the attached Excel file.