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Mathematics 7 Online
OpenStudy (anonymous):

For a 99% confidence interval based on the t (8) distribution? t*=?

OpenStudy (dumbcow):

3.355

OpenStudy (anonymous):

How?

OpenStudy (dumbcow):

look it up in a t-distribution table or in Excel

OpenStudy (anonymous):

How come you don't subtract one from the degrees of freedom?

OpenStudy (anonymous):

I think just the typo!

OpenStudy (anonymous):

the degree of freedom is 7

OpenStudy (anonymous):

significant level is 1/2%

OpenStudy (dumbcow):

i assumed 8 was the degrees of freedom

OpenStudy (dumbcow):

whats the sample size? degree of freedom is one less than sample size

OpenStudy (anonymous):

when it said 95% CI for t(20), I had to do 20-1. Now for 99% CI for t(8) I don't do 8-1. I got both correct.

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