- #1
RedonYellow
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I am trying to calculate the confidence interval for this problem using my T-84, and it's driving me mad because I'm so close to the correct answer. The problem is
The answer to this problem is (22769.83, 30059.41) (This is an example problem.) When I try to duplicate this in my calculator, my answer is (22772,30058).
I go to STAT>TESTS>7>STATS
I put the data in like this
standard deviation: 8150
mean: 26414.62
n: 20
C-Level: 0.9544
Could someone tell me what I'm doing incorrectly, please.
Homework Statement
The answer to this problem is (22769.83, 30059.41) (This is an example problem.) When I try to duplicate this in my calculator, my answer is (22772,30058).
Homework Equations
I go to STAT>TESTS>7>STATS
The Attempt at a Solution
I put the data in like this
standard deviation: 8150
mean: 26414.62
n: 20
C-Level: 0.9544
Could someone tell me what I'm doing incorrectly, please.