4. Between 2008 and 2011, the age distribution of users of social networking sites such as Facebook changeddramatically. In 2008, 70% of users were 35 years old or younger. In 2011, the age distribution wasmuch more spread out. The table below shows the age distribution of 975 users of social networkingsites from a survey reported in June 2011.36-49AgeFrequency18-2223-3550-6565+15631225319559(a) Test an assumption that users are equally likely to be in each of the five age groups listed. Use95% confidence.(b) Which age group contributes the largest amount to the sum for the x2 test statistic? For this agegroup, is the observed count smaller or larger than the expected count?

age O 18-22 156 23-35 312 36-49 253 50-65 195 65+ 59 total number of observation = 5

Answered: ported in June 2011. 23-35 36-49 50-65…

Math

Statistics

ported in June 2011. 23-35 36-49 50-65 65+ 312 253 195 59 ion that users are equally likely

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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