We discovered that 1,013 GSS respondents in 2010 watched television for an average of 3.01 hr/day, with

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We discovered that 1,013 GSS respondents in 2010 watched television for an average of 3.01 hr/day, with a standard deviation of 2.65 hr. Answer the following questions assuming the distribution of the number of television hours is normal.
a. What is the Z score for a person who watches more than 8 hr/day?
b. What proportion of people watch television less than 5 hr/day? How many does this correspond to in the sample?
c. What number of television hours per day corresponds to a Z score of +1?
d. What is the percentage of people who watch between 1 and 6 hr of television per day?
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Social Statistics For A Diverse Society

ISBN: 9781483333540

7th Edition

Authors: Chava Frankfort Nachmias, Anna Leon Guerrero

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