Question

Movies 10a and b - Kruskal Wallis

1. Using either R and/or SPSS, calculate a Kruskal Wallis H test report in the correct format AND a complete write up (in a paragraph) following the example in the movie. (1 point).Be sure to cut and paste your output into this document. When using R this should include your code. IF using SPSS screenshot the output dialogs after double clicking on the summary (I have not been able to cut and paste those dialogs). Because the AgeGroup is in strings, you will need to convert the strings to numbers to use the legacy dialogs in SPSS.
   

Continuing with the New York Times scenario, your bosses also want to know if age groups differ on their satisfaction level (Likert 1-5 – where 5 is very satisfied) with how often the online version updates their headlines .

Age_Group	Satisfaction
Boomers	4
Boomers	3
Boomers	5
Boomers	4
Boomers	3
Boomers	3
Boomers	5
Boomers	3
Boomers	4
Boomers	5
Boomers	4
Boomers	4
GenX	4
GenX	3
GenX	5
GenX	4
GenX	3
GenX	2
GenX	5
GenX	3
GenX	4
GenX	5
GenX	4
GenX	4
Millennials	2
Millennials	3
Millennials	4
Millennials	3
Millennials	1
Millennials	3
Millennials	2
Millennials	2
Millennials	3
Millennials	3
Millennials	2
Millennials	1

Answer 1

The SPSS output is:

The hypothesis being tested is:

H0: n1 = n2 = n3

Ha: Not all medians are equal

The p-value is 0.001.

Since the p-value (0.001) is less than the significance level (0.05), we can reject the null hypothesis.

Therefore, we can conclude that age groups differs on their satisfaction level.

Please give me a thumbs-up if this helps you out. Thank you!