A car manufacturer looks at past sales and realizes that the most common car color is silver with 24% of purchasers selecting that color.The dealerships in one state believe that car purchasers in their area believe that the proportion of purchasers selecting silver is greater than 24%.Based on a survey of 84 car purchasers in the state, the dealerships find that 26% of them would select silver.If the true proportion selecting silver is 27%, what is the power, given an alpha of 0.05?
A)0.4587
B)0.1154
C)0.8322
D)0.8423
E)0.1678

Question

Quizplus · Accepted Answer

The Answer of A car manufacturer looks at past sales and realizes that the most common car color is silver with 24% of purchasers selecting that color.The dealerships in one state believe that car purchasers in their area believe that the proportion of purchasers selecting silver is greater than 24%.Based on a survey of 84 car purchasers in the state, the dealerships find that 26% of them would select silver.If the true proportion selecting silver is 27%, what is the power, given an alpha of 0.05?
A)0.4587
B)0.1154
C)0.8322
D)0.8423
E)0.1678

A Car Manufacturer Looks at Past Sales and Realizes That