Mathematics, 17.03.2020 21:07 needhelpwithHW10
In a recent study, the percentage of high school students who have smoked a cigarette in the last 30 days was 15.7%. A principal wanted to estimate this proportion at her school, so she asked 180 students the same question. 21 students said yes.
a. verify the conditions have been met for calculating a confidence interval for p, the proportion of students at this school who have smoked a cigarette in the last 30 days.
b. calculate a 95% confidence interval for p
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