Question

Time spent indoors (hours) 3 5 6 9 10 9 8 10 10 12 13 11...

Time spent indoors (hours)

3

5

6

9

10

9

8

10

10

12

13

11

16

11

7

8

18

13

12

13

1.Can you calculate z-scores for each of the raw scores above? If so, please calculate the z-score for a kid who reported spending 8 hours indoors.

2. if you transformed the variable “time spent indoors” from an X-scale to a z-scale, what would be the new mean of the distribution? What would be the new standard deviation? Why might it be useful to transform to a Z-scale?

Math   Statistics-And-Probability   
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