Unit 2, Topic 10, Exercise 10-15

Diabetes Diagnoses

The National Health and Nutrition Examination Survey (NHANES) is a large-scale study conducted annually by the National Center for Health Statistics. It involves over 10,000 Americans, randomly selected according to a multistage sampling plan. All sampled subjects are asked to complete a survey and take a physical examination. One of the questions asked in the 20032004 NHANES survey pertained only to subjects who had been diagnosed with diabetes. Subjects were asked to indicate the age at which they were first diagnosed with diabetes by a health professional. Responses for the 548 subjects with diabetes are summarized in the following frequency table:

Age	Tally	Age	Tally	Age	Tally	Age	Tally	Age	Tally
1	1	18	4	37	7	54	8	71	4
2	3	19	3	38	10	55	22	72	4
3	7	20	1	39	9	56	13	73	9
4	5	21	3	40	15	57	8	74	4
5	5	24	2	41	9	58	11	75	8
6	2	25	1	42	8	59	16	76	7
7	4	26	4	43	9	60	19	77	5
8	5	27	4	44	5	61	5	78	6
9	1	28	2	45	12	62	16	79	3
10	5	29	1	46	8	63	9	80	2
11	1	30	6	47	7	64	10	81	3
12	2	31	5	48	11	65	10	82	2
13	1	32	3	49	12	66	9	83	1
14	0	33	8	50	25	67	6	84	2
15	2	34	5	51	9	68	12	85	1
16	3	35	15	52	9	69	7	87	1
17	1	36	4	53	7	70	13	88	1

a.Use this frequency table to determine the five-number summary of these ages.

Min =?

Q_L=?

Median =?

Q_U=?

Max =?

b.Check for outliers, according to the 1.5 IQR criterion.

There are ? low outliers. There are ? high outliers.

c.Produce a well-labeled, modified boxplot of the distribution of ages.

?