## Descripitive statistics

A pediatrician at the Community Physicians Clinic told a mother that her six-month old child is in the 54th percentile in weight. This means that her child’s weight is greater than or equal to 54 percent of all six-month old children. True or false?

218
Use the information below to find your percentile. Your score is 86.

Test Scores out of 100 Points

95

97

99

74

84

91

65

94

54

89

35

88

86

56

77

96

76

27

100

75

92

93

Using the information below for University Hospital, answer the following questions.

University Hospital
C-sections by Physician
January–December 20XX

Physician Number

Number of C-sections

101

3

202

7

303

27

305

33

401

5

407

8

508

1

518

12

629

9

710

2

911

4

912

18

933

22

944

15

975

20

Which percentile is Dr. 975?

Find the 60th percentile

219
Dr. Sullivan, a new physician at Community Physician’s Clinic has acquired twenty new patients in the first month of his practice. He wants to offer free diet counseling to be given by a new dietician at the clinic to all his new patients whose weight is over the 85th percentile. He asks the health information management (HIM) professional to determine who these patients would be.

New Patients seen by Dr. Sullivan
October 20XX

Patient Number

Weight

892345

196

877654

207

764309

155

753254

185

912356

186

455656

192

232323

147

567815

209

875408

242

543465

307

872345

245

925627

232

647382

222

980753

150

765497

189

743952

195

867342

180

142849

175

745261

172

654811

165

Using the information above, determine the patients who would be included for the free diet counseling.

Dr. Sullivan determines that weight is not low enough to include patients he believes should be included for free counseling and asks you to determine the percentile for 172 lbs., which he believes is a more realistic weight to have to begin counseling.

220
Dr. Davis, a new endocrinologist at the Community Physician’s Clinic, acquired 20 new diabetic patients during his first month of practice. Their A1C results are listed below.

New patients seen by Dr. Davis
October 20XX

Patient Number

A1C result

893245

5.7

879554

5.8

766509

6.2

752354

6.1

918756

6.8

457656

11.5

235423

10.7

561115

6.7

872208

6.8

544565

9.2

876745

8.4

929827

7.2

648382

6.9

980053

5.5

768997

5.7

741452

6.7

861942

10.4

146349

8.5

749961

9.6

656511

6.0

Dr. Davis would like to offer a weight-loss clinic to the patients who are above the 40th percentile of the results. Which patients would that be? List by patient number.

Sample Solution