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In: Statistics and Probability

Construct a 90% confidence interval to estimate the population mean using the data below. x=19 s=4.2...

Construct a 90% confidence interval to estimate the population mean using the data below.
x=19 s=4.2 n=14

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Expert Solution

We have given that,                  
                  
Sample mean =19          
Sample standard deviation =4.2      
Sample size =14          
Level of significance=1-0.90=0.1          
Degree of freedom =13          
                  
t critical value is (by using t table)=   1.771          
                  
Confidence interval formula is                   


=(17.01,20.99)              
                  

orchestra answered 2 years ago
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