Answer:
99% Confidence interval: (2.9,6.7)
Step-by-step explanation:
We are given the following data set:
1.8, 4.7, 4.1, 5.2, 7.6, 7.3, 5.7, 3.2, 5.4, 1.9, 2.7, 8.1
Formula:
where are data points,
is the mean and n is the number of observations.
Sum of squares of differences = 51.18
99% Confidence interval:
Putting the values, we get,
(2.9,6.7) is the required 99% confidence interval for average number of hours per day adults spend in front of screens watching television-related content.