A study conducted by Stanford researchers asked children in twoelementary schools in San Jose, CA to keep track of how muchtelevision they watch per week. The sample consisted of 198children. The mean time spent watching television per week in thesample was 15.41 hours with a standard deviation of 14.16hours.
(a) Carry out a one-sample t-test to determine whether there isconvincing evidence that average amount of television watching perweek among San Jose elementary children exceeds fourteen hours perweek. (Report the hypotheses, test statistic, p-value, andconclusion at the 0.10 level of significance.)
(b) Calculate and interpret a one-sample 90% t-confidenceinterval for the population mean.
(c) Comment on whether the technical conditions for thet-procedures are satisfied here. [Hint: What can you say based onthe summary statistics provided about the likely shape of thepopulation?]
