SOLUTION: A food snack manufacture samples 15 bags of pretzels off the assembly line and weighed their contents if the sample mean is 10.2 And the sample standard deviation is 0.25 what is t

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Question 1162461: A food snack manufacture samples 15 bags of pretzels off the assembly line and weighed their contents if the sample mean is 10.2 And the sample standard deviation is 0.25 what is the 95% confidence interval of the true mean
Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
half-interval is t0.975 df=14 *s/sqrt(n)
t is 2.145
half-interval is 2.145*0.25/sqrt(15)=0.138 or 0.14
the 95% CI is then (10.06, 10.34) weight units

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