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March 31, 2015

March 31, 2015

Posted by **tracy10** on Monday, June 24, 2013 at 3:06pm.

Sample Number Mean Std. Dev.

1 27 39 21

2 16 26 35

Lower Limit Incorrect: Your answer is incorrect. .

Upper Limit Incorrect: Your answer is incorrect. .

This is what I have got so far. (27-1)X21squared + (16-1) X35squared divided by 27+16-2=12160.55556 then I sqrt 1/27 + 1/16=.3154949081, then 39-26/? x.315494981 now I am stuck???

- math help -
**Kuai**, Monday, June 24, 2013 at 3:26pmIs that two table or one table

- math help -
**Kuai**, Monday, June 24, 2013 at 4:10pm(-7.02, 33.02)

- math help -
**tracy10**, Monday, June 24, 2013 at 4:32pmIt is a 2 samples, those answers are not right, but I desperately need your help. I do appreciate your help.

- math help -
**tracy10**, Tuesday, June 25, 2013 at 10:25amI am sorry those answers were right, I was putting them on another proboem that I have, and I need your help on it, my sample 1 Number is 22, mean 31, and Std dev. 28, Second sample is Number 25, mean 25, Std. Dev. 35. I get as far as I did on the one above and that is as far as I can go. Thank goodness this is the last problem like this to do. Confidence 98%. Again thank you

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