Question

part b: What assumptions need to be made about this population?

Question Help The following data show the number of hours per day 12 adults spent in front of screens watching television-related content. Complete parts a and b below 5.1 1.2 4.8 3.9 7.9 720 5.2 2.6 1.5 5.5 2.4 8.1 a. Construct a 95% confidonce interval to estimate the average number of hours per day adults spend in front of screens watching television-related content The 95% confidence interval to estimate the average number of hours per day adults spend in front of screens watching television-related content is from hours to hours (Round to two decimal places as needed)

Answer 1

from the given datą we have, 7: 59,4 : 4.6166. 4.69 S = Vino Elli- tje Vie-is ((1.2 - 4.60)+...48:1 - 4.617)2 5 2.371 (a) At 95% confidence interval, Q=1-0.95= 0.05 - 012 = 0.025 degree of frudom (df - N-1= 12-1=11 Acruihical = 40.025,42 = 2.204 95% confidence interval for average no. of hours per day adulto spend in front of screens watching television related content An * 4.617 E 2.201*- 1* To = 4.617 + 1.50647 = 3.11053, 6.12347 2.371 + X t critical V ..

= 3.11, 6.12 ) Round do 2 derimas places (b) Assumption W] The population follows the normal probability distribution