SOLUTION: a research concludes that the number of hours of exercise per week for adults is normally distributed with a mean of 3.5 hours and a standard deviation of 3 hours a- find the 75

Question 1062005: a research concludes that the number of hours of exercise per week for adults is normally distributed with a mean of 3.5 hours and a standard deviation of 3 hours
a- find the 75th percentile for the distribution of exercise time per week
b- what is the probability that a randomly selected adult has more than 5 hours of exercise per week
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Using NORMSINV in EXCEL to find so that .

So,

.
.
.
Find the z score,

So then,

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