| Author: | Homework Help Classof1 | ISBN: | 1230000114842 |
| Publisher: | Classof1 | Publication: | March 13, 2013 |
| Imprint: | Language: | English |
| Author: | Homework Help Classof1 |
| ISBN: | 1230000114842 |
| Publisher: | Classof1 |
| Publication: | March 13, 2013 |
| Imprint: | |
| Language: | English |
A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of $3.02. For the October 26 evening showing of the same movie, for a sample of 25 purchases the mean was $5.12 with a standard deviation of $2.14. The means appear to be very close, but not the variances. At α = .05, is there a difference in variances? Show all steps clearly, including an illustration of the decision rule.
A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of $3.02. For the October 26 evening showing of the same movie, for a sample of 25 purchases the mean was $5.12 with a standard deviation of $2.14. The means appear to be very close, but not the variances. At α = .05, is there a difference in variances? Show all steps clearly, including an illustration of the decision rule.
