A certain school classified 1725 students according to the following categories: dull, coverage,...

Question

A certain school classified 1725 students according to the following categories: dull, coverage, intelligent and family economic levels: rich, middle class and poor

Monica · Accepted Answer

1) 
Solution
Perform two sample t – test 
The null and alternative hypothesis is given by, 
  
Given:
  
Check whether to use pooled t –test or un-pooled t –test 
F – Test 
 
F – test statistic is, 
 
Decision Rule:
Reject Ho; if the p –value is less than 0.05
Fail to reject Ho; if the p –value is not less than 0.05 
To find p –value use the excel function =1-F.DIST.RT(0.783,8,8,TRUE)
Multiply the obtained value by 2 
The required p – value is equal to 0.

A certain school classified 1725 students according to the following categories: dull, coverage, intelligent and family economic levels: rich, middle class and poor

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