posted by doug .
I am getting problems with my calculations. For the first part of the question I got 68 when I try another calculation I got 1. One of the method used was Degree of freedom =(r-1)(c-1).
The director of transportation of a large company is interested in the usage of her van pool. She considers her routes to be divided into local and non-local. She is particularly interested in learning if there is a difference in the proportion of males and females who use the local routes. She takes a sample of a day's riders and finds the following:
Male Female Total
Local 27 44 71
Non-Local 33 25 58
Total 60 69 129
She will use this information to perform a chi-square hypothesis test using a level of significance of 0.05.
(a) Referring to Table 12-7, the test will involve ________ degree(s) of freedom.
(b) Referring to Table 12-7, the overall or average proportion of local riders is ________.
(c) Referring to Table 12-7, the expected cell frequency in the Male/Local cell is ________.