vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee. Calculate the grand mean for the following data.
______________________________________
Machine A Machine B Machine C__
11.8 11.7 12.2
12.1 11.9 12.1
12.0 11.7 12.0
11.9 11.8 11.9
____12.1 12.0 12.2_____
a. 12.08
b. 11.96
c. 11.82
d. 11.85
44. For the three coffee machines described in Problem 43, calculate the between-group variance.
a. 0.017
b. 0.098
c. 0.057
d. 0.086
2007-05-14 15:34:04 · 1 answers · asked by fish 1 in Science & Mathematics ➔ Mathematics
grand mean = 11.96
BGV = 0.056736111
2007-05-14 18:20:09 · answer #1 · answered by Helmut 7 · 0⤊ 0⤋