Question

Sales volume last weekend for four samples, each consisting of five car dealerships, were as follows: Data Point 1 2 3 4 5 Sample 1 21 10 19 35 23 Sample 2 34 44 29 15 30 Sample 3 38 22 29 31 15 Sample 4 47 39 20 16 36 What is the mean of the distribution of sample means

Answer 1

22.12

Explanation:

Hope this helps

Answer 2

Mean of sample means = 22.12

Explanation:

Data points 1 2 3 4 5 Sample mean

Sample 1 21 10 19 35 23 21.6

Sample 2 34 44 29 15 30 30.4

Sample 3 38 22 29 31 15 27

Sample 4 47 39 20 16 36 31.6

`Mean of means = (Sum of sample means)/(No. of samples)`

`=(21.6 + 30.4 + 27 + 31.6 )/(5) \\= 22.12`