A CBS News poll involved a nationwide random sample of 651 adults, asked those adults about their partyaffiliation (Democrat, Republican or none) and their opinion of how the US economy was changing ("gettingbetter," "getting worse" or "about the same"). The results are shown in the table below.better same worseRepublican38104441287137Democratnone2190118If we randomly select one of the adults who participated in this study, compute: (round to four decimalplaces)a. P(affiliated with neither party)= 0.3518b. P(same) = 0.3518 XC.P(same affiliated with neither party) = 0.3930d. P(affiliated with neither party | same) :=e.P(affiliated with neither party and same) ==

Given data better same worseRepublican 38 104…

Answered: A CBS News poll involved a nationwide…

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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Is gender independent of education level ? A random sample of 395 people were surveyed and each person was asked to report the highest education level they obtained .The data that resulted from the survey is summarized in the following table: High School Bachelors Masters PhD. Female 60 54 46 41 Male 40 44 53 57 Question: Are gender and education level dependent at 5percent level of significance ? In other words given the data collected above is there a relationship between the gender of an individual and the level of education that they have obtained ?
The Women’s Institutional Studies group at a Midwestern university wanted to compare the percentages of female faculty members in the various units on campus in Spring 2004. Of particular interest were the percentages of female faculty in the College of Education and in the College of Business . In a sample of 80 College of Education faculties, there were 36 females, and in a sample of 70 College of Business faculties, there were 15 females. Based upon this sample information, which of the following is the 98% confidence interval for the difference in the actual percentages of female faculty between College of Education and College of Business ? a. (0.075, 0.405). b. (0.123, 0.357). c. (-0.012, 0.252). d. (0.058, 0.422). e. (0.101, 0.379).
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