Final answer:
To estimate the average number of hours of television watched per day by a sample of 28 individuals, divide the mean number of hours spent watching television per month by 30 and use the confidence interval to make an approximation.
Step-by-step explanation:
To find the average number of hours of television watched per day by a sample of 28 individuals, we can use the information provided. The mean number of hours spent watching television per month from a sample of 108 Americans is 45 X. This information is not directly applicable to the given sample size of 28, so we will need to make an estimate based on this data. Based on the given confidence interval of 47 CI: (142.92, 159.08), we can estimate the average number of hours of television watched per day by dividing the mean by 30 (assuming an average month has 30 days). This would give us an average of approximately 4.76 to 5.3 hours of television watched per day by the sample of 28 individuals.