cse63146
Dec15-09, 10:58 AM
1. The problem statement, all variables and given/known data
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?
2. Relevant equations
3. The attempt at a solution
Would I use this form of the CLT: \frac{\sqrt{n}(\overline{x} - \mu)}{\sigma}
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?
2. Relevant equations
3. The attempt at a solution
Would I use this form of the CLT: \frac{\sqrt{n}(\overline{x} - \mu)}{\sigma}