One Study Revealed That the Average Child Under the Age

Short Answer

One study revealed that the average child under the age of 10 watches television 4.5 hours per day.
a. A group of families from a certain community would like to believe that their children watch television less than the national average.
A random sample of 14 children from the community yielded a mean of 4.1 hours per day with a standard deviation of 1.2. Test the appropriate hypotheses at the
= 0.01 level. Assume the viewing time is normally distributed and interpret your results.
b. Compute the test statistic for the hypotheses in (a).
Test Statistic = ______________
Conclusion: ______________
The sample data ______________ support the null hypothesis at the
level?