Using Central Limit Theorem to Estimate Sample Means in a Stats Class"

[cse63146]

Homework Statement

Each of 180 students in an evening stats and methods class is asked to generate 64 random numbers with a "spinner" that selects numbers from 1 to 50, and then compute the mean of the 64 numbers. The mean for the class as a whole is 27 with a standard deviation of 20. How many of the students would be expected to have their sample means less than 23.25?

Homework Equations

The Attempt at a Solution

Would I use this form of the CLT: \frac{\sqrt{n}(\overline{x} - \mu)}{\sigma}

 

[Mark44]

No one has responded, so I think I'll weigh in - yes, that's the statistic to use, with n = 180.

 

[cse63146]

That's what I thought; thanks.