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ChristinaScience October 26th, 2018 06:00 PM

T-Statistics
 
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Hello,

Did I solve this correctly? If I did not, please point out and explain where I made a mistake. Thank you.

H0: There is no change
H1: There is a change.

α (alpha level) = 0.05
One-Tailed

Critical Region: +/- 1.812

s^2=SS/(n-1) = 4.5/10= 0.45

sm =√(s^2/n)=√(0.45/11) = 0.20

t = (M-µ)/ sm= 35-20/0.20 = 75

Reject the null.


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