Research is conducted regarding the average age at retirement for four careers. A total of 700 people who recently retired are randomly selected. The resulting data are displayed in the contingency table below. The research question is: Are there differences in the retirement age for the four career types?A. Assuming a 5% significance level, what is the appropriate decision for this test and why? B. Write a one-sentence conclusion statement. C.Examine the standardized residuals presented in the table below and discuss any significant results in 2-4 sentences SalesProfessor50-5556-6061-65-0.7647958 0.41186530.8634598 -1.0085071-2.3134070 -1.5464506 0.9428090 1.45320651.9615130 0.7184902 -1.1959150 -0.22532390.4137104 -0.5639452 -0.241900165+NurseData analyst 1.0568458 Age of retirement50-5556-6061-6565+Sales10407540Professor5308060=Career typeNurseExpected cell frequency:56-6061-6565+Sales50-5512.72857 37.47857 67.88571 46.9071413.50000 39.75000 72.00000 49.75000ProfessorNurse13.73143 40.43143 73.23429 50.60286Data analyst 14.04000 41.34000 74.88000 51.7400021456349The appropriate test was performed in R. The results are shown below:data: observed|X-squared = 20.771, df9, p-value = 0.01371Data analyst18447050

The question is about categorical data analysis Given : Test stat ( χ2 ) = 20.771 p value = 0.01371…

Answered: Research is conducted regarding the…

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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Research is conducted regarding the average age at retirement for four careers. A total of 700 people who recently retired are randomly selected. The resulting data are displayed in the contingency table below. The research question is: Are there differences in the retirement age for the four career types?

A. Assuming a 5% significance level, what is the appropriate decision for this test and why?

B. Write a one-sentence conclusion statement.

C.Examine the standardized residuals presented in the table below and discuss any significant results in 2-4 sentences