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A market analyst wants to know if the new website he designed is showing increased page views per visit. A customer is randomly sent to one of two different​ websites, offering the same​ products, but with different designs. The accompanying table shows the data from five randomly chosen customers from each website.
a) Find the sample mean page views for each website.

b) Find the estimated difference of the sample​ mean, left parenthesis y overbar 1 minus y overbar 2 right parenthesis​, page views of the two websites.

c) Find the sample variance for each website.

d) Find the sample standard deviations for each website.

e) Find the standard error of the difference of the sample means.

 

Website 1 Website 2   d  
11 8   3  
5 15   -10  
15 5   10  
8 2   6  
6 7   -1  
         
9 7.4   1.6 Mean
4.0620192 4.8270074     sd
16.5 23.3     Var
      2.821347 SE
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