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Playing Video GamesIn a recent study of 35 ninth- grade
Chapter 7, Problem 11E(choose chapter or problem)
Playing Video Games In a recent study of 35 ninth- grade students, the mean number of hours per week that they played video games was 16.6. The standard deviation of the population was 2.8.
a. Find the best point estimate of the mean. 16.6 hours
b. Find the 95% confidence interval of the mean of the time playing video games.
c. Find the 99% confidence interval of the mean time playing video games.
d. Which is larger? Explain why.
Questions & Answers
QUESTION:
Playing Video Games In a recent study of 35 ninth- grade students, the mean number of hours per week that they played video games was 16.6. The standard deviation of the population was 2.8.
a. Find the best point estimate of the mean. 16.6 hours
b. Find the 95% confidence interval of the mean of the time playing video games.
c. Find the 99% confidence interval of the mean time playing video games.
d. Which is larger? Explain why.
ANSWER:
Step 1 of 5
It is given that 16.6 hours per week is the mean number of hours 35 ninth-grade students played video game and 2.8 is the population standard deviation.
Using this we need to find the required values.