College officials want to estimate the percentage of students who carry a gun, knife, or other such weapon. How many randomly selected students must be surveyed in order to be 98% confident that the sample percentage has a margin of error of 2 percentage points? (a) Assume that there is no available information that could be used as an estimate of p. Answer: (b) Assume that another study indicated that 4% of college students carry weapons. Answer: ☐
College officials want to estimate the percentage of students who carry a gun, knife, or other such weapon. How many randomly selected students must be surveyed in order to be 98% confident that the sample percentage has a margin of error of 2 percentage points? (a) Assume that there is no available information that could be used as an estimate of p. Answer: (b) Assume that another study indicated that 4% of college students carry weapons. Answer: ☐
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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