We discovered that 1,001 GSS 2014 respondents watched television for an average of 2.94 hours per day, with a standard deviation of 2.60 hours. Answer the following questions assuming the distribution of the number of television hours is normal.
1. What is the Z score for a person who watches more than 8 hours per day?
2. What proportion of people watch television less than 5 hours per day? How many does this correspond to in the sample?
3. What number of television hours per day corresponds to a Z score of +1?
4. What is the percentage of people who watch between 1 and 6 hours of television per day?