The sales department has determined that the average purchase value for their catalog business is normally distributed with a mean of $41.34 and a standard deviation of $13.54. What is the purchase value at the 30th percentile

The purchase value at the 30th percentile=34.24

Step-by-step explanation:

We are given that

Mean,

Standard deviation,

We have to find the purchase value at the 30th percentile.

Where Z is the critical value of x% confidence interval

x=30

Critical value of Z at 30% confidence interval=-0.5244

Using the formula

30th percentile=

30th percentile=

30th percentile

Hence,  the purchase value at the 30th percentile=34.24

b) well because you get well

an altitude of 15,000 feet

step-by-step explanation: