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Category > Math Posted 19 Aug 2017 My Price 8.00

MATH 399N Statistics for Decision Making Week 6 iLab

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MATH 399N Statistics for Decision Making
Week 6 iLab
Name:_______________________
Statistical Concepts: Data Simulation Confidence Intervals Normal Probabilities
Short Answer Writing Assignment
All answers should be complete sentences.
We need to find the confidence interval for the SLEEP variable. To do this, we need to find the
mean and then find the maximum error. Then we can use a calculator to find the interval, (x – E,
x + E).
First, find the mean. Under that column, in cell E37, type =AVERAGE(E2:E36). Under that in
cell E38, type =STDEV(E2:E36). Now we can find the maximum error of the confidence interval.
To find the maximum error, we use the “confidence” formula. In cell E39, type
=CONFIDENCE.NORM(0.05,E38,35). The 0.05 is based on the confidence level of 95%, the
E38 is the standard deviation, and 35 is the number in our sample. You then need to calculate
the confidence interval by using a calculator to subtract the maximum error from the mean (x-E)

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Status NEW Posted 19 Aug 2017 02:08 PM My Price 8.00

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