Sorry but I don't understand your response what is "inversecdf" and "studenttdistribution". Also what kind of calculator would I need to calculate the inverse of the cumulative t-distribution? I'm rolling on a ti-83 plus and this baby has yet to fail me. Just to be clear, I know how to calculate...
So as the title says. How do you calculate the confidence interval that is not on the t-table. For example how do you calculate the confidence interval for 97%? Assume that it is a normal distribution, you are not given σ and that n<30. Is there a formula? Or should i look for a more specific...
Thanks mark. Ill be sure to post problems in the homework section from now on. You're right it helps to visualize the problem as a venn diagram instead of plugging numbers into formulas or trying to make new ones:p
Why can't i get any assistance with this question? Is it that stupid? Is it because I am a "noob" Seriously any feedback positive or negative would be GREATLY appreciated.
I realize now that i did b wrong the p(aorb) with the given formula includes the probability of p(a) and p(b) occurring...
So I'm having some trouble with a particular question in my stats textbook. It's an even number and the answers in the back cover only the odd questions so i can't check my answers. Here's the question:
Dorm rooms on a university campus reveal that 38% have a fridge, 52% a TV and 21 % have both...