Use the shared results from the Student Data Table and follow the instructions below.

1.Devise a null and alternative hypothesis, then test using alpha=0.05 if our class is taller or shorter than the average human in the United States. Graphically display your answer and statistically write up results. In addition, determine the effect size of this relationship and interpret.

Notes:

1.The average height of adults in the United States is 67.0 3.8 inches.

2.Calculate and interpret the effect size (use Cohen's d):

Cohen's d = (M_sample- _population) )

2.Devise a null and alternative hypothesis, then test using alpha =0.05 if the students in our class that are born in warm weather months are taller or shorter than those born in cold weather months. Graphically display your answer and statistically write up results. In addition, determine the effect size of this relationship and interpret.

Notes:

1.Population SDs are unknown.

2.Assume the northern hemisphere:

Warm months = April, May, June, July, August, September

Cold months = October, November, December, January, February, March

3.Use Cohen's d effect size:

Cohen's d = (M₂- M₁) SD_pooled) where SD_pooled= ((SD1²+ SD2²) 2)

STUDENT DATA TABLE

ID School Enrolled _Months Enrolled_Birthday Month_Distance from work (miles)_Height (")_Foot Size (")_Hand Size (")_Sleep (per night minutes)_Homework (time each day minutes)

1 Arts & Science 12 Jan 0 60 8 5 360 30

2 Science & Tech 6 Feb 0 62 7 6 400 45

3 Business & Mngmnt 8 April 5 66 10 7 420 60

4 Nursing 10 June 10 68 12 8 440 15

5 Public Service 48 July 15 68 14 8 540 75

6 Arts & Science 48 July 30 70 12 9 480 120

7 Science & Tech 36 June 32 72 11 8 320 80

8 Science & Tech 32 October 36 75 14 7 440 60

9 Science & Tech 49 Nov 20 68 9 6 360 60

10 Science & Tech 1 March 10 72 11 8 420 120

11 Science & Tech 46 March 6 74 12 8 400 70

12 Science & Tech 49 Dec 8 70 11 8 400 60

13 Business & Mngmnt 1 Feb 40 61 9 7 420 60

14 Business & Mngmnt 49 July 2 52 8 6 480 120

15 Business & Mngmnt 4 Sept 2 71 10 7 420 60

16 Science & Tech 1 Sept 0 69 11 8 420 120

17 Arts & Science 49 Jan 0 75 11 8 500 600

18 Science & Tech 24 Sept 35 60 10 5 420 240

19 Science & Tech 7 Nov 8 73 12 7 360 45

20 Science & Tech 9 Jan 5 67 10 7 600 120

21 Science & Tech 48 Dec 6 72 13 8 600 45

22 Science & Tech 36 May 6 67 10 7 390 120