I would do a one sided hypothesis test where vs. .
If you want to do a CI instead, it should be a one-sided CI.
This is a simple t-test with n-1=34 degrees of freedom.
The test stat is
I have gotten some basics from this question, but cannot think of the formula to match it. Too much information and I am lost.. PLEASE HELP!!!!
At the time she was hired as a server at the Grumney Family restaurant, Beth Brigden was told, “You can average more than $20 a day in tips.” Over the first 35 days she was employed at the restaurant, the mean daily amount of her tips was $24,85, with a standard deviation of $3.24. Can Ms. Brigden be 99% confident that she is earning an average of more than $20 per day in tips?
Mean: $24.85
Standard Deviation: $3.24