# GM Engineers

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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.

Â© BrainMass Inc. brainmass.com May 24, 2023, 1:21 pm ad1c9bdddfhttps://brainmass.com/statistics/descriptive-statistics/gm-engineers-estimate-mean-driver-response-time-18104

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

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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.

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