Chapter 11: Problem 2 Previous Problem Problem List Next Problem 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 of 698 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 8 - 13 14 - 21 231 175 406 83 62 145 32 59 91 22 or more 25 31 56 Total 371 327 698 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 = 0.01. (a) x = %3D (b) Find the degrees of freedom: c) Find the critical value: ) The final conclusion is DA. There is not sufficient evidence to reject the null hypothesis that the length of stay is independent of retirement. OB. 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. 田|田田|田

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Chapter 11: Problem 2
Previous Problem
Problem List
Next Problem
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
e of 698 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
231
175
406
8 – 13
83
62
145
14 21
32
59
91
22 or more
25
31
56
Total
371
327
698
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
%3D
Now, with that information, determine whether the length of stay is independent of retirement using a = 0.01.
(a) x? =
(b) Find the degrees of freedom:
(c) Find the critical value:
(d) The final conclusion is
OA. There is not sufficient evidence to reject the null hypothesis that the length of stay is independent of retirement.
OB. 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.
田|曲|田
Transcribed Image Text:View History Bookmarks People Tab Window Help Sun 7:15 PM A WeBWorK : M1401-95-SP21 : C X B Geogebra Graphing Calculator X Probability - GeoGebra clayton.edu/webwork2/M1401-95-SP21/Chapter_11/2/?effectiveUser=kwarren5&user=kwarren5&key=DQrsNhtaOFLcVYBFB5to2a5d4aRVMEZvX Upda be O Maps A Macmillan Launch... Chapter 11: Problem 2 Previous Problem Problem List Next Problem 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 e of 698 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 7 231 175 406 8 – 13 83 62 145 14 21 32 59 91 22 or more 25 31 56 Total 371 327 698 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 %3D Now, with that information, determine whether the length of stay is independent of retirement using a = 0.01. (a) x? = (b) Find the degrees of freedom: (c) Find the critical value: (d) The final conclusion is OA. There is not sufficient evidence to reject the null hypothesis that the length of stay is independent of retirement. OB. 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. 田|曲|田
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