GM Engineers

GM engineers want to estimate meandriver response time to a new break light standard Deviationwith the symbol Q upsidedown is known to be .15. fifty drivers have a mean response time of .72. find a 90% confidence interval.

Please see attachment

GM engineers want to estimate mean driver response time to a new break light standard Deviation with the symbol Q upsidedown is …

GM engineers want to estimate mean driver response time to a new break light standard Deviation with the symbol Q upsidedown is known to be .15. fifty drivers have a mean response time of .72. find a 90% confidence interval.