QUESTION 3 [24] An experiment was conducted to determine the effects of viewing a magical film versus a non-magical film in children. Samples of 32 5-year olds, 32 7-year-olds and 32 8-year- olds were selected, and randomly assigned such that 16 of each age, group viewed the magical film and 16 of each age-group viewed the non-magical. The following table gives the means for each treatment and , = 2.57. The response (Y) was a score on an imagination scale (rating of a child acting out an object or animal). Hint Agel Film Non-marginal Maginal 17.0 21.6 5 7 18.7 22.7 8 22.7 19.4 a) b) Analyse the data and draw conclusion. (12) Compute confidence intervals for the age using Newman-Keuls. Draw lines below the age labels, joining pairs of ages that are not significantly different. c) Age 5 Age 7 Age 8 (8) Give the results graphically using lines to check the presence of age by film interactions. Interpret your findings. (4) QUESTION 3 [24] An experiment was conducted to determine the effects of viewing a magical film versus a non-magical film in children. Samples of 32 5-year olds, 32 7-year-olds and 32 8-year- olds were selected, and randomly assigned such that 16 of each age, group viewed the magical film and 16 of each age-group viewed the non-magical. The following table gives the means for each treatment and , = 2.57. The response (Y) was a score on an imagination scale (rating of a child acting out an object or animal). Hint Agel Film Non-marginal Maginal 17.0 21.6 5 7 18.7 22.7 8 22.7 19.4 a) b) Analyse the data and draw conclusion. (12) Compute confidence intervals for the age using Newman-Keuls. Draw lines below the age labels, joining pairs of ages that are not significantly different. c) Age 5 Age 7 Age 8 (8) Give the results graphically using lines to check the presence of age by film interactions. Interpret your findings. (4)