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Does listening to music increase the speed at which people complete routine tasks Fifteen volunteers...

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Does listening to music increase the speed at which people complete routine tasks Fifteen volunteers are asked to sort 100 red and white beads into two piles according to color once while listening to Handel s Water Music and once in silence the order music or silence first is determined for each subject by the flip of a coin Here are the data along with summary statistics in the last two columns Subject Handel Silence Difference Select one a b C d 1 e 14 16 2 2 15 18 3 0 4 2 145 0 4 1 96 0 4 1 96 3 4 5 6 17 21 13 18 17 20 15 17 0 1 2 1 0 4 2 145 1 96 15 1 96 15 19 0 18 6 2 145 1 96 14 1 96 14 7 21 22 8 24 27 1 3 5 04 5 13 15 15 9 15 14 1 We want to estimate the mean difference Silence Handel in time to sort the beads with and without music Which of the following is the appropriate 95 confidence interval T 887 10 25 22 20 32 3 2 2620 12 30 3212 15 14 15 Y 16 H 7 15 HH BEL 13 17 1 S 18 6 5 04 19 0 5 13 1 96 0 4 E

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