ID	School Enrolled	Months Enrolled	Birthday Month	Distance to Work (whole miles)	Height (whole inches)	Foot Size (whole inches)	Hand Size (whole inches)	Sleep (minutes)	Homework (minutes)
1	Arts and Sciences	12	January	0	60	8	5	360	30
2	Applied Science and Technology	6	February	0	62	7	6	400	45
3	Business and Management	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 and Sciences	48	June	30	70	12	9	480	120
7	Applied Science and Technology	36	October	32	72	11	8	320	80
8	Applied Science and Technology	32	November	36	75	14	7	440	60
9	Applied Science and Technology	10	September	14	71	12	8	330	60
10	Arts and Science	36	December	10	67	7	8	240	120
11	Applied Science and Technology	7	August	8	75	12	8	300	60
12	Applied Science and Technology	49	November	15	68	10	7	390	60
13	Applied Science and Technology	27	July	1	68	11	7	390	180
14	Applied Science and Technology	26	January	18	72	12	8	450	60
15	Applied Science and Technology	12	November	5	72	11	8	390	30
16	Applied Science and Technology	36	July	31	73	12	9	420	60
17	Arts and Science	6	April	2	63	7	5	420	60
18	Applied Science and Technology	10	October	32	72	11	8	390	45
19	Arts and Science	3	June	6	64	9	6	360	120
20	Business and Management	12	August	12	72	10	8	360	120
21	Applied Science and Technology	12	March	45	66	7	5	320	60
22	Applied Science and Technology	12	February	5	74	12	8	360	60
23	Arts and Sciences	49	March	5	65	9	7	420	120
24	Applied Science and Technology	18	September	15	72	12	7	420	90
25	Applied Science and Technology	1	March	25	70	12	7	360	90
26	Applied Science and Technology	1	August	5	68	10	7	420	90
27	Arts and Sciences	4	April	0	65	7	6	420	120

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

1. Devise a null and alternative hypothesis, then perform a one sample z-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 67.03.8 inches. (Note: this is a population SD)
   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 perform a t-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.
3. Assume the northern hemisphere: Warm months = April, May, June, July, August, September Cold months = October, November, December, January, February, March
4. Use Cohen's d effect size: Cohen's d = (M₂ - M₁) SD_pooled) where SD_pooled = ((SD1² + SD2²) 2)