It has been suggusted that the highest priority of retirees is travel. Thus, a study was conducted to investigate the differences in the length of stay of a trip for pre- and post-retirees. A sample of 688 travelers were asked how long they stayed on a typical trip. The observed results of the study are found below. Number of Nights Pre-retirement Post-retirement Total 4-7 236 167 403 81 60 141 55 88 37 319 8-13 14-21 22 or more Total 33 19 369 56 688 With this information, construct a table of estimated expected values. Number of Nights Pre-retirement Post-retirement 4-7 8-13 14-21 22 or more Now, with that information, determine whether the length of stay is independent of retirement using a 0.05. (b) Find the degrees of freedom: (c) Find the critical value: (d) The final conclusion is A. There is not sufficient evidence to reject the null hypothesis that the length of stay is independent of retirement. B. We can reject the null hypothesis that the length of stay is independent of retirement and accept the alternative hypothesis that the two are dependent.
It has been suggusted that the highest priority of retirees is travel. Thus, a study was conducted to investigate the differences in the length of stay of a trip for pre- and post-retirees. A sample of 688 travelers were asked how long they stayed on a typical trip. The observed results of the study are found below. Number of Nights Pre-retirement Post-retirement Total 4-7 236 167 403 81 60 141 55 88 37 319 8-13 14-21 22 or more Total 33 19 369 56 688 With this information, construct a table of estimated expected values. Number of Nights Pre-retirement Post-retirement 4-7 8-13 14-21 22 or more Now, with that information, determine whether the length of stay is independent of retirement using a 0.05. (b) Find the degrees of freedom: (c) Find the critical value: (d) The final conclusion is A. There is not sufficient evidence to reject the null hypothesis that the length of stay is independent of retirement. B. We can reject the null hypothesis that the length of stay is independent of retirement and accept the alternative hypothesis that the two are dependent.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Transcribed Image Text:It has been suggusted that the highest priority of retirees is travel. Thus, a study was conducted to investigate the differences in the length of
stay of a trip for pre- and post-retirees. A sample of 688 travelers were asked how long they stayed on a typical trip. The observed results of the study
are found below.
Number of Nights Pre-retirement Post-retirement Total
4-7
236
167
403
8-13
81
60
141
14-21
33
55
88
22 or more
19
37
56
Total
369
319 688
With this information, construct a table of estimated expected values.
Number of Nights Pre-retirement Post-retirement
4-7
8-13
14-21
22 or more
Now, with that information, determine whether the length of stay is independent of retirement using a 0.05.
(b) Find the degrees of freedom:
(c) Find the critical value:
(d) The final conclusion is
A. There is not sufficient evidence to reject the null hypothesis that the length of stay is independent of retirement.
B. We can reject the null hypothesis that the length of stay is independent of retirement and accept the alternative hypothesis that the two are
dependent.
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