Question

1. Find a statistic that is expected to be normally distributed (e.g. height of adult men).
2. Sample 30 people regarding their value related to this statistic (e.g. ask them “How tall are you?”) and record your results.
   1. Sampling 30 people is not optional. You must have at least 30 values of the statistic you choose.
3. Use StatCrunch to create a histogram of your results.
4. Post the question you asked and the histogram you created. Are your results normally distributed? Why or why not?

I tried using the statcrunch on histogram in the school website but i think I am doing something wrong. The data I used are Hemoglobin A1c blood test result.

1.) 4.2

2.)   4

3.) 5

4.)   5.4

5.)   5.6

6.) 6.6

7.) 6.8

8.) 8

9.) 8.2

10.)   4.4

11.) 5.8

12.) 6

13.) 6.2

14.) 7

15.) 7.5

16.) 8.8

18.) 9

19.) 10

20.) 9.4

21.) 10.2

22.) 10.8

23.) 9.6

24.) 10.6

25.) 11.8

26.) 11

27.) 12

28.) 11.9

29.) 12.6

30.) 12.1

Please help...

Answer 1

Solution: The histogram of the given data is given below:

From the histogram, we observe that there is no symmetric pattern in the histogram. There is no normality in the data.

The Q-Q plot is given below: