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t-Test: Paired Two Sample for Means - difference?
Hi, I have a stat test tomorrow and have every type of question down except this one. I use the t test paired two sample for means tool and enter the test stat value and 2-T value but it keeps coming up with the answer being incorrect. Can someone please do a run through of how to use this function correctly to solve this answer. Thank you!!
A restaurant consultant undertook a preliminary study to investigate whether or not there is a difference in the tips earned by waiters and waitresses. The study involved measuring the percentage of the total bill left as a tip for randomly selected waiters and waitresses in 50 restaurants.
Use the Excel t-Test: Paired Two Sample for Means to perform a statistical test for the difference in mean percentage of the bill left as a tip to waiters and waitresses
Waitress Waiter
11 11
12 12
18 15
15 11
8 10
15 12
14 12
12 9
11 12
Enter the test statistic given by the Excel test output
Enter the correct P-value from the Excel test output
1 Answer
- ?Lv 68 years agoFavorite Answer
I got a p value of .096072 for a 2 tailed paired T-test in Excel (just different).
.048036 for a 1 tailed test (one specifically more or less than another).