In: Statistics and Probability
In Mealanies styling salon, the time to complete a simple haircut is normally distributed with mean of 25 minutes and a standard deviation of 4 minutes. What percent of customers require less than 32 minutes for a haircut?
Please show what formulas you use and step by step solution.
Here it is given that distribution is normal with mean=25 and standard deviation=4
So we need to find
As distribution is normal we can convert x to z
We have used below z table to find the required probability