CUSTOMER ENGAGEMENT
While working on this project, i iobserve that when i used f test to verify the the assumption that the variances are unequal, i got the following results
how ever still on the same paid plan, the t test showed to reject Ho if p value < alpha, the P value of 0.00116 <0.05 alpha. hence reject Ho.
Another decision rule was to reject Ho if T stat is > t critical value? from observation the T stat of -3.04694 < t critical value 1.960252, hence fail to reject Ho i am attaching a screen shot of my observation.
i thought the result of the F test, the comparison of the Pvalue to the alpha, the comparison of the T test and T stat will give same result? kindly advice. tx
2 answers ( 0 marked as helpful)
i have gone through the video on T stat wrt unknown variance(unequal variance) question, the video said if the absolute value of T stat> than t critical value, reject Ho.
The beginner project is statistics showed that for the free plan, the absolute value of T stat was 29.775 while the critical value was 1.644. based on the rule, it should be reject Ho but the question to number 6 said 29.7, accept Ho. i have attached a screen shot of my calculations, kindly advise
still on customer engagement task 5:
the result showed that Pvalue> alpha, hence fail to reject Ho( in other words accept Ho).. meaning there is enough statistical evidence to show that US engagement is >= Indian engagement?
If true, there won't be any implication for the business but your notes did show some implications for the business. pls kindly clarify this.
thank you