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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?

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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 8 months ago
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