A random sample of 50 students was taken by the principal of a large high school to see if arelationship exists between gender and attitude concerning a proposed mandatory community servicerequirement. The data appear in the table below.FemaleMaleTotalApprove11819Disapprove51318Undecided6713Total222850Which of the following gives the null hypothesis in a test to determine if a relationship existsbetween gender and attitude concerning a proposed mandatory community service requirement?(A) Premale = PMale(B) PApprove PDisapprove PUndecided(C) Gender of a student is independent of opinion on the proposal.(D) Gender of a student is not independent of opinion on the proposal.(E) The distribution of opinions is the same for each gender.

In statistics, the null hypothesis is a general statement or default position that there is no…

Answered: A random sample of 50 students was…

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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A survey was conducted to determine whether hours of sleep per night are independent of age. A sample of individuals was asked to indicate the number of hours of sleep per night with categorical options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8 hours or more. Later in the survey, the individuals were asked to indicate their age with categorical options: age 39 or younger and age 40 or older. Sample data follow. Age Group Hours of Sleep 39 or younger 40 or older Fewer than 6 38 36 6 to 6.9 60 57 7 to 7.9 76 74 8 or more 66 93 (a) Conduct a test of independence to determine whether hours of sleep are independent of age. (b) What is your estimate of the percentages of individuals who sleep fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8 hours or more per night?
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