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Mathematics, 05.12.2019 17:31 strawberrymrmr3068
As part of its "it can wait" campaign to discourage texting while driving, at& t recently released the results of separate surveys concerning the extent of texting while driving among adults twd_commutor_survey and among teensatt_teen_survey_executive .
in the survey of the adults, 496 of n1 = 1,011 adult drivers (49%) said they text while driving.
in the survey of the teens, 516 of n2 = 1,200 (43%) said they text while driving.
question 1. calculate a 95% confidence interval for the difference padult - pteen in the proportions of adults that text while driving and the proportion of teens that text while driving. (use 3 decimal places in your answers)
lower bound
upper bound
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As part of its "it can wait" campaign to discourage texting while driving, at& t recently releas...
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