Thursday

October 2, 2014

October 2, 2014

Posted by **Nancy** on Saturday, April 7, 2012 at 12:06pm.

mean of 3.10 minutes and standard deviation of 0.40 minute. If a random sample

of 16 customers is selected,

a) what assumption must be made in order to solve parts (b) and (c)?

b) what is the probability that the average time spent per customer will be at

least 3 minutes?

c) there is an 85% chance that the sample mean will be below how many

minutes?

d) If a random sample of 64 customers is selected, there is an 85% chance that

the sample mean will be below how many minutes?

**Answer this Question**

**Related Questions**

Statistic - The amount of time it takes to take your order at the local Whaters ...

math - A bank wishing to determine the average amount of time a customer must ...

Math - Bank XYZ is hiring, and they would like to determine the number of ...

Math (Statistic) - Considered the sampling distribution of a sample mean ...

Stats - The amount of time Ricardo spends brushing his teeth follows a Normal ...

statistics - A random sample of size 81 is taken from a large population, ...

statistics - 1. A random sample of size 49 is taken from a large population, ...

statistics - A bus company official wanted to estimate the mean time for the ...

Stats - It is known that the amount of time needed to change the oil in a car is...

Statistics - A random sample of forty-eight 200 meter swims has a mean of 3:12 ...