Test an assumption that users are equally likely to be in each of the five age groups.Calculate the chi-square statistic and the p-value.Round your answer for the chi-square statistic to two decimal places, and your answer for the p-value to three decimal places. Between 2008 and 2011, the age distribution of users of social networking sites such as Facebook changed dramatically. In 2008,70 % of users were 35 years old or younger. In 2011, the age distribution was much more spread out. The table below shows theage distribution of 975 users of social networking sites from a survey reported in June 2011.Age18 – 2223 – 35 36 –- 49 50 – 6565 +Frequency15631225319559Table 1 Age distribution of users of social networking sites

Find the expected frequency. Age Observed Frequency Expected frequency 18 to 22 156 195 23 to…

Answered: Between 2008 and 2011, the age…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Test an assumption that users are equally likely to be in each of the five age groups.

Calculate the chi-square statistic and the p-value.

Round your answer for the chi-square statistic to two decimal places, and your answer for the p-value to three decimal places.

Between 2008 and 2011, the age distribution of users of social networking sites such as Facebook changed dramatically. In 2008,
70 % of users were 35 years old or younger. In 2011, the age distribution was much more spread out. The table below shows the
age distribution of 975 users of social networking sites from a survey reported in June 2011.
Age
18 – 22
23 – 35 36 –- 49 50 – 65
65 +
Frequency
156
312
253
195
59
Table 1 Age distribution of users of social networking sites

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