Determine the point estimate of the population mean and margin of error for the confidence interval withlower bound 7 and upper bound: 25.
A) $\bar { x } = 16 , E = 9$
B) $\bar { x } = 16 , E = 18$
C) $\bar { x } = 7 , E = 18$
D) $\bar { x } = 25 , E = 9$

Question

Determine the point estimate of the population mean and margin of error for the confidence interval withlower bound 7 and upper bound: 25. 
A) $\bar { x } = 16 , E = 9$
B) $\bar { x } = 16 , E = 18$
C) $\bar { x } = 7 , E = 18$
D) $\bar { x } = 25 , E = 9$

Quizplus · Accepted Answer

The point estimate of the population mean ($\bar{x}$) is the midpoint of the confidence interval, calculated as $(7 + 25) / 2 = 16$. The margin of error (E) is half the width of the confidence interval, calculated as $(25 - 7) / 2 = 9$.

Determine the Point Estimate of the Population Mean and Margin xˉ=16,E=9\bar { x } = 16 , E = 9xˉ=16,E=9

Determine the Point Estimate of the Population Mean and Margin $\bar { x } = 16 , E = 9$