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   #22 We are interested in comparing the average price of cars in 2015 and 2010....

   #22

We are interested in comparing the average price of cars in 2015 and 2010. We are given the following data:

   2010    2015

   sample mean $29,217 $31,252

sample standard deviation $4,560    $3,942

   Sample Size    30    22

Find the 95% confidence interval for the difference from 2015 and 2010.

Math   Statistics-And-Probability   
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