Standard Scores

1. Use both the Student ID and Distance to Work variables.
2. List the Student ID at TESU in ascending order of Distance to Work.
3. Calculate the z-scores associated with each student (use the sample standard deviation for this calculation).
4. Identify potential outliers and explain your reasoning.

Confidence Intervals/Samples

1. Take a sample of the first four data points for the variable Distance to Work (unsorted - use the original order in the dataset).
2. Determine the 95% and 99% confidence intervals using the same size of 4.
3. Describe and compare the two intervals.
4. Take a sample of the first seven data points for the variable Distance to Work (unsorted - use the original order in the dataset).
5. Determine the 95% confidence interval. Use the same mean and SD, but change the sample size to 20 and determine the 95% confidence interval.
6. Describe and compare the two intervals.

STUDENT DATA TABLE
ID	School Enrolled	Months enrolled	Birthday month	Distance to Work	Height	Foot Size	Hand Size	Sleep	Homework
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	12	8	320	80
8	Applied Science and Technology	32	November	36	75	14	7	440	60
9	Nursing	6	July	8	63	9	7	300	90
10	Arts and Sciences	22	May	22	80	14	9	420	30
11	Business and Management	15	February	10	65	8	6	500	60
12	Public Service	20	April	4	71	10	8	400	20
13	Applied Science and Technology	11	March	15	66	9	7	440	60
14	Arts and Sciences	18	November	28	64	9	7	300	30
15	Arts and Sciences	29	January	12	72	10	8	360	80
16	Nursing	13	December	6	63	8	6	480	100
17	Business and Management	49	August	0	79	13	9	410	25
18	Applied Science and Technology	16	April	10	74	12	8	430	15
19	Business and Management	24	September	30	66	10	6	330	60
20	Arts and Sciences	8	May	0	65	9	7	480	30