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 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 = (b) Find the degrees 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|田|| 田|田|田|田

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 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 = (b) Find the degrees 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|田|| 田|田|田|田

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

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 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
0.01.
%3D
Now, with that information, determine whether the length of stay is independent of retirement using a
(a) x² =
(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.

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