Question

10a. Does background music affect the performance of factory workers? We take a group of eight workers, and measure each worker's productivity (in terms of the number of flangle-grommets manufactured per hour) twice -once while the worker is listening to background music, and once while the same worker is working in silence. Here are the workers' scores:

Use Nonparametric tests

No       Music

1          15        10       

2          12        14

3          11        11

4          16        11

5          14        4

6          13        11

7          11        12

8          8          10

10b.The table below shows the hours of relief provided by two analgesic drugs in 12 patients suffering from arthritis. Is there any evidence that one drug provides longer relief than the other?

Drug A            2.0       14.9     3.6       6.6       2.6       2.3       2.6       2.0       7.3       6.8       3.4

Drug B            3.5       16.7     5.7       6.0       2.9       3.8       2.4       4.0       9.9       9.1       3.3

Answer 1

SOLUTION - 15 2 12 11 10 14 12 11 3 وا 5 1 6 14 13 4 6 7 8 11 12 10 8 find MEAN E=100 L=83 ne 8 X, = 2A 10o n YES BACKGROUND MUSIC Affecting PERFORMANCE 8 = 12.5 to = 83 of FACTORY - = 10.375 n WORKERS 10 b DATA IS MISSING – 12 PATIENTS But we HAVE DATA OF 11 only