A claim with an alpha =0.10 and a mu of 20. A sample size of 30...

A claim with an alpha =0.10 and a mu of 20. A sample size of 30 yields a sample mean of 17.5 and a sample standard deviation of 10. What is the upper confidence limit with 3 decimal places?

Expert Solution

We have given that,

Sample mean =17.5
Sample standard deviation =10
Sample size =30
Level of significance=   0.1
Degree of freedom =29

t critical value is (by using t table)=   1.699

Confidence interval formula is

=(14.398,20.602)





Upper confidence limit=   20.602

milcah answered 7 months ago

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A claim with an alpha =0.10 and a mu of 20. A sample size of 30...

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