A researcher would like to determine whether any particular age group has a greater risk of influenza-related complications. A sample of 50 such cases is categorized according to the victim’s age. The observed frequencies are as follows:UNDER 3030-60OVER 605540In the city from which the sample was selected, 30% of the population is in the “under 30” bracket, 40% is in “30-60” and 30% is in “over 60.” This information should be used in determining expected frequency values, since they cannot be based on equal expected frequencies of 1/3 (33%) in each age category. Can the investigator conclude that risk differs with age? Test with the .05 level of significance.What is the value of chi-square that you calculated? 0.25 5.99 48.99 59.58 A researcher would like to determine whether any particular age group has a greater risk of influenza-related complications. A sample of 50 such cases is categorized according to the victim's age. Theobserved frequencies are as follows:UNDER 3050.25In the city from which the sample was selected, 30% of the population is in the "under 30" bracket, 40% isin "30-60" and 30% is in "over 60." This information should be used in determining expected frequencyvalues, since they cannot be based on equal expected frequencies of 1/3 (33%) in each age category.Can the investigator conclude that risk differs with age? Test with the .05 level of significance.What is the value of chi-square that you calculated?5.9948.9930-60559.58OVER 6040

First, we need to calculate the expected frequencies for each age group based on the population…

Answered: A researcher would like to determine…

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 researcher would like to determine whether any particular age group has a greater risk of influenza-related complications. A sample of 50 such cases is categorized according to the victim’s age. The observed frequencies are as follows:

UNDER 30	30-60	OVER 60
5	5	40

In the city from which the sample was selected, 30% of the population is in the “under 30” bracket, 40% is in “30-60” and 30% is in “over 60.” This information should be used in determining expected frequency values, since they cannot be based on equal expected frequencies of 1/3 (33%) in each age category. Can the investigator conclude that risk differs with age? Test with the .05 level of significance.
What is the value of chi-square that you calculated?