This preview shows page 1. Sign up to view the full content.
Unformatted text preview: Your Answer n = 49 X = 82 Mean = 80 s=7 Z = (X-mean)/(s/n^0.5) = (82-80)/(7/ (49^0.5) = 2 Z 0.05 = 1.645 Rejection region is R = (-inf, 1.645) The Z observed value from this data was 2, which is not in the rejection region (-inf,1.645) so the data is significantly more than 80. The data is accepted for the 0.05 sig level. Grader Comments (none) Grade 10.0 (out of 10.0) Total 10.0 (out of 10.0)...
View Full Document
This note was uploaded on 04/03/2008 for the course STAT 215 taught by Professor Dr. during the Spring '08 term at WVU.
- Spring '08