Questions:1. In a study on college campus crimes committed by students high on alcohol or drugs, a mail survey of1875 students was conducted. A USA Today article noted, "Eight percent of the students respondinganonymously say they've committed a campus crime. And, of that group, 62% say they did so under theinfluence of alcohol or drugs. Assuming the number of students responding anonymously is 1875, howmany say they committed a campus crime while under the influence of alcohol or drugs?

We have given information, The number of students who committed a campus crime while under the…

Answered: 1. In a study on college campus crimes…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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5. A high school teacher wants to see if there is an effect on vocabulary recall between when students take a quiz before lunch and when they take it after lunch. She randomly selected 10 students and assessed them before lunch on Tuesday. On Wednesday she randomly selected 10 students and assessed them after lunch. The following were the percentage results Before lunch 62 60 68 64 72 75 63 60 64 80 After lunch 72 85 72 62 84 76 66 63 65 64 What type of samples were selected – independent or dependent (paired)? Explain. StatCrunch was used to analyze the data, and the output for both types of samples (independent and dependent) is given below. Using the appropriate output, determine if the mean quiz score is higher for those who take the quiz before lunch over those who take the quiz after lunch at a significance level of 0.05. Hypothesis test results: mean before lunch mean after lunch Hypothesis test results: : µi - µ2 : mean of the PAIRED difference µ2 : between Before and After…

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