At Acme Records, research indicated that for each new CD the company solicits an "intent to purchase" score from the student, with ) being the lowest score ("no intent to purchase"? and 100 being the highest score. The manager finds the following information for 130 intent to purchase scores for a soon to be released CD.
Group Sample Size Sample Mean Sample Variance
1 26 68.3 104.2
2 26 65.4 71.1
3 26 65.6 87.9
4 26 58.3 79.6
5 26 68.1 116.7
Conduct a one-way independant-samples ANOVA test
Determine:
1 What is the value of the mean square for error (the "within groups" mean square that would be reported in the ANOVA test, and
2- What is the value of the mean square for treatments (the "between groups" mean sqaure) that would be reported in the ANOVA test?