It has been suggested that the highest priority of retirees is travel Thus a stu

Question

It has been suggested 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 705 travelers were asked how long they stayed on a typical trip. The observed results of the study are found below. With this information, construct a table of estimated expected values Now. with that Information, determine whether the length of stay is independent of retirement using alpha= 0.01 (a) c^2=____ (b) Find the degrees of freedom:____ (c) Find the critical value:___ (d) The final conclusion is A. We can reject the no

Explanation / Answer

from above

X2 =14.299

degree of freedom =(row-1)*(column-1) =3

critical value =11.3449

option A is correct

please reply

Observed O pre-retirement post-retirement Total 4-7 242 164 406 8-13 79 69 148 14-21 40 55 95 22 or more 23 33 56 Total 384 321 705 Expected E=rowtotal*column total/grand total pre-retirement post-retirement Total 4-7 221.1 184.9 406 8-13 80.6 67.4 148 14-21 51.7 43.3 95 22 or more 30.5 25.5 56 Total 384 321 705 chi square =(O-E)^2/E pre-retirement post-retirement Total 4-7 1.968 2.354 4.321 8-13 0.032 0.039 0.071 14-21 2.666 3.189 5.855 22 or more 1.845 2.207 4.052 Total 6.511 7.789 14.299

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