Site_A Site_B $115 $110 $79 $79 $40 $37 $138 $129 $96 $96 $28 $28 $84 $69 $98 $98 $116 $106 $69 $66 Using software or a​ calculator, construct a​ 90% confidence interval comparing the population mean...


Site_A         Site_B


$115           $110
$79             $79
$40             $37
$138          $129
$96            $96
$28            $28
$84            $69
$98            $98
$116         $106
$69           $66



Using software or a​ calculator, construct a​ 90% confidence interval comparing the population mean prices of all textbooks used that term at her college​ (price at Site A minus price at Site​ B). Interpret.


Select the correct choice below and fill in the answer boxes to complete your choice.

​(Round to three decimal places as​ needed.)






A. It is plausible that the population mean price difference is 0 because 0 does not lie in the confidence interval left parenthesis nothing comma nothing right parenthesis .,.






B. It is plausible that the population mean price difference is 0 because 0 lies in the confidence interval left parenthesis nothing comma nothing right parenthesis .,.





C. It is not plausible that the population mean price difference is 0 because 0 does not lie in the confidence interval left parenthesis nothing comma nothing right parenthesis .,.







Jun 04, 2022
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