Question 16: (1 Points) Question 17: (1 Points) Question 18: (1 Points) Question 19: (1 Points) \"twenty university students (chosen at random from students enrolled at the University oi Vermont) took part in an experiment testing the efiect of watching Fox News vs. cNN on knowledge of world events. The 20 participants were divided Into two equal groups of 10 participants each. One group was assigned to watch FOX and the other was assigned to watch CNN. Participants then watched their assigned station (FOX or CNN) for three hours a night for four weeks. At the end of the four- week period they were administered a test at world knowledge. The results were as tollows: mFox = 110. chN = 99, km = 10. Semi = 5- Compute the lower limit of the 95% condence interval around mFox mCNN. (Please give your answer to two decimal places.) For the data provided in Quesiont 16, compute the lower limit oi the approximate 95% condence Interval around the estimate of 6 computed from mg\" - mum. (Please round your answerto two decimal places.) For the data provided in Quesiont 16, compute to,\" based on ma\" "'CNN' (Please round your answer to two decimal places.) For the data provided In Queslont 16, determine the proportion of variability In the 20 scores that Is explained by the difference between the two means. (Please round your answer to two decimal places.) Question 20: (1 Points) Question 21: (1 Points) Question 22: (1 Points) Question 23: (1 Points) Researchers at Concordia University have a theory that drinking beer while studying will reduce test anxiety and result in improved test grades. To test their theory the researchers chose 16 students at random from those currently enrolled in PSYC315 (introductory statistics) at Concordia university. Hall of the students were asked to consume two bottles ol beer during their normal studying periods, and the other hall was asked to retrain from alcohol consumption while studying. The students then wrote the test In their regular class period. The results were as follows: ma\