In order to estimate the difference between the average hourly wages of employees of two branches...

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In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered. Downtown Store North Mall Store 25 20 Sample size Sample mean $9 $8 Sample standard deviation $2 $1 A 95% interval estimate for the difference between the two population means is 01.078 to 2.922 Ob 1.922 to 2.078 01.09 to 4.078 Od 0.078 to 1.922 In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered. Downtown Store North Mall Store 25 20 Sample size Sample mean $9 $8 Sample standard deviation $2 $1 A 95% interval estimate for the difference between the two population means is 01.078 to 2.922 Ob 1.922 to 2.078 01.09 to 4.078 Od 0.078 to 1.922

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downtown X S 9000 2000 25000 X S n M Point estimate x1x2 degree of freedom v std error ... View the full answer