2. Do pleasant odors improve students' performance on tests? To test this idea, 21 subjects worked a paper-and-pencil maze while wearing either an unscented or floral scented mask. The subjects completed three mazes with each type of mask and the average time to complete the maze was recorded. The order of the two masks was randomly assigned. The average completion time (in seconds) for each subject is below. Subject Unscented Scented 1 30.60 37.97 2 48.43 51.57 3 60.77 56.67 4 36.07 40.47 5 68.47 49.00 6 32.43 43.23 7 43.70 44.57 8 37.10 28.40 9 31.17 28.23 10 51.23 68.47 11 65.40 51.10 12 58.93 83.50 13 54.47 38.30 14 43.53 51.37 15 37.93 29.33 16 43.50 54.27 17 87.70 62.73 18 53.53 58.00 19 64.30 52.40 20 47.37 53.63 21 53.67 47.00

2. Do pleasant odors improve students' performance on tests? To test this idea, 21 subjects worked a paper-and-pencil maze while wearing either an unscented or floral scented mask. The subjects completed three mazes with each type of mask and the average time to complete the maze was recorded. The order of the two masks was randomly assigned. The average completion time (in seconds) for each subject is below. Subject Unscented Scented 1 30.60 37.97 2 48.43 51.57 3 60.77 56.67 4 36.07 40.47 5 68.47 49.00 6 32.43 43.23 7 43.70 44.57 8 37.10 28.40 9 31.17 28.23 10 51.23 68.47 11 65.40 51.10 12 58.93 83.50 13 54.47 38.30 14 43.53 51.37 15 37.93 29.33 16 43.50 54.27 17 87.70 62.73 18 53.53 58.00 19 64.30 52.40 20 47.37 53.63 21 53.67 47.00

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter9: Sequences, Probability And Counting Theory

Section9.5: Counting Principles

Problem 5SE: Answer the following questions. 5. What is the term for the arrangement that selects r objects from...

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