Answers:1. a) χ2 = 4.112, do not reject H0: gender and age of contracting the disease are independent; b) χ2 = 14.03, reject H0: the data do not support the researcher's beliefs; c) χ2 = 2.068, do not reject H0: it appears that this belief is not supported (there is no evidence to suggest that the belief is correct). 1. A hospital keeps a record of the number of males and females in different age groups who contract a particulardisease. The data are summarized as follows:Age Groups10-25MaleFemale26-40 41-55 56 +232034 6431 552944a) Are gender and age of contracting the disease independent of one another (a ≤.05)?b) A researcher believes that people in the 41-55 age group are three times as likely to develop the disease as arethose in each of the two younger age groups, while those in the 56 + age group are only twice as likely (relative tothose in the two youngest groups). The two youngest age groups are not expected to differ from each other. Do thedata support these beliefs (a ≤.01)?c) It is also believed that, relative to males, the proportion of females in the 56 + age group that develops thedisease is significantly different from the proportion of females in the 10-25 age group that develops the disease.Test this belief with a ≤.05.

The chi-square test is a statistical measure used to test the independence groups. The given…

1. A hospital keeps a record of the number of males and females in different age groups who contract a particular disease. The data are summarized as follows: Age Groups 10-25 26-40 41-55 56 + Male Female 23 20 34 64 31 55 29 44 a) Are gender and age of contracting the disease independent of one another (a ≤.05)?

1. A hospital keeps a record of the number of males and females in different age groups who contract a particular disease. The data are summarized as follows: Age Groups 10-25 26-40 41-55 56 + Male Female 23 20 34 64 31 55 29 44 a) Are gender and age of contracting the disease independent of one another (a ≤.05)?

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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