Assume that all variable are approximately normally distributed.
Dance Company StudentsThe number of students who belong to the dance company at each of several randomly selected small universities is shown below. Estimate the true population mean size of a university dance company with 99% confidence. 25.8<μ<33.9. Assume normal distribution.
21 
25 
32 
22 
28 
30 
29 
30 
47 
26 
35 
26 
35 
26 
28 
28 
32 
27 
40 





Answer
Step 1 of 1</p>
(a)
We have given the number of students who belong to the dance company at each of several randomly selected small universities.
We are asked to estimate the true population mean size of a university dance company with 99 % confidence.
Assume normal distribution.
21  25  32  22  28  30  29  30 
47  26  35  26  35  26  28  28 
32  27  40 





We have given
First, we will find the sample mean and sample standard deviation.
We need to find...