12. A survey conducted at Chicago Public Schools (CPS) involving high school students on whether they...
12. A survey conducted at Chicago Public Schools (CPS) involving high school students on whether they had participated in binged drinking during the past month. Binge drinking was defined as 5 or more drinks in a row on one or more of the past 30 days.
|
Number who identified as having participated in Binge Drinking. |
73 |
|
Total participants |
571 |
a. From the sample data is there evidence that the proportion of students who participate in binge drinking is greater than 10%? Write a null and alternative hypothesis and perform an appropriate significance test using α=0.025.
b. Construct a 95% Confidence Interval for the population proportion. Does it support the same conclusion as in 12a? Explain.
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