7.5.4 The following questionnaire was completed by a simple random sample of 250 gynecologists. The number checking each response is shown in the appropriate box. 1. When you have a choice, which procedure do you prefer for obtaining samples of endometrium? (a) Dilation and curettage 175 (b) Vobra aspiration 75 2. Have you seen one or more pregnant women during the past year whom you knew to have elevated blood lead levels? (a) Yes 25 (b) No 225 3. Do you routinely acquaint your pregnant patients who smoke with the suspected hazards of smoking to the fetus? (a) Yes 238 (b) No 12 Can we conclude from these data that in the sampled population more than 60 percent prefer dilation and curettage for obtaining samples of endometrium? Let a = .01.

7.5.4 The following questionnaire was completed by a simple random sample of 250 gynecologists. The number checking each response is shown in the appropriate box. 1. When you have a choice, which procedure do you prefer for obtaining samples of endometrium? (a) Dilation and curettage 175 (b) Vobra aspiration 75 2. Have you seen one or more pregnant women during the past year whom you knew to have elevated blood lead levels? (a) Yes 25 (b) No 225 3. Do you routinely acquaint your pregnant patients who smoke with the suspected hazards of smoking to the fetus? (a) Yes 238 (b) No 12 Can we conclude from these data that in the sampled population more than 60 percent prefer dilation and curettage for obtaining samples of endometrium? Let a = .01.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 3E

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