Question: For a random variable that is normally distributed, with = 80 and = 10, determine the probability that a simple random sample of 25 items

For a random variable that is normally distributed, with = 80 and = 10, determine the probability that a simple random sample of 25 items will have a mean that isless than 85?

A.

0.9938 or 99.38%

B.

0.6853 or 68.53%

C.

0.3085 or 30.85%

D.

0.8413or 84.13%

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!