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17. Which of the following would be most likely to produce selection bias in a survey?* A. Conducting interviews by telephone instead of in person. B. Using questions with biased wording C. Only receiving responses from half of the people in the sample. D. Using sample random sample of students at a university to estimate the proportion of people who think the legal drinking age should be lowered

17. Which of the following would be most likely to produce selection bias in a survey?* A. Conducting interviews by telephone instead of in person. B. Using questions with biased wording C. Only receiving responses from half of the people in the sample. D. Using sample random sample of students at a university to estimate the proportion of people who think the legal drinking age should be lowered

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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17. Which of the following would be most likely to produce selection bias in a survey?* A. Conducting interviews by telephone instead of in person. B. Using questions with biased wording C. Only receiving responses from half of the people in the sample. D. Using sample random sample of students at a university to estimate the proportion of people who think the legal drinking age should be lowered 18. Take the formula Z = (X-u)/a, where u is the mean of the population, X is the value of the element, Z is the z-score and o is the standard deviation. What does this formula calculate? * A. Confidence interval. B. Standard score. C. Variance. D. Standard error of the mean. 19. Suppose that in an adult population the proportion of people who are both overweight and suffer hypertension is 0.09; the proportion of people who are not overweight but suffer hypertension is 0.11; the proportion of people who are overweight but do not suffer hypertension is 0.02; and the proportion of people who are neither overweight nor suffer hypertension is 0.78. An adult is randomly selected from this population. Find the probability that the person selected suffers hypertension given that he is overweight. A. 0.82 В. О.78 C.O.12 D. 0.90 20. A die is called "balanced" or "fair" if each side is equally likely to land on top. Assign a probability to each outcome in the sample space for the experiment that consists of tossing a single fair die. Find the probabilities of the events: "an even number is rolled" * А. 1/2 В. 1 С. 2 D. 3 21. Compare the scores: a score of 220 on a test with a mean of 200 and a standard deviation of 21 and a score of 90 on a test with a mean of 80 and a standard deviation of 8* A. A score of 90 with a mean of 80 and a standard deviation of 8 is better B. A score of 220 with a mean of 200 and a standard deviation of 21 is better. C. You cannot determine which score is better from the given information. D. The two scores are statistically the same
Transcribed Image Text:17. Which of the following would be most likely to produce selection bias in a survey?* A. Conducting interviews by telephone instead of in person. B. Using questions with biased wording C. Only receiving responses from half of the people in the sample. D. Using sample random sample of students at a university to estimate the proportion of people who think the legal drinking age should be lowered 18. Take the formula Z = (X-u)/a, where u is the mean of the population, X is the value of the element, Z is the z-score and o is the standard deviation. What does this formula calculate? * A. Confidence interval. B. Standard score. C. Variance. D. Standard error of the mean. 19. Suppose that in an adult population the proportion of people who are both overweight and suffer hypertension is 0.09; the proportion of people who are not overweight but suffer hypertension is 0.11; the proportion of people who are overweight but do not suffer hypertension is 0.02; and the proportion of people who are neither overweight nor suffer hypertension is 0.78. An adult is randomly selected from this population. Find the probability that the person selected suffers hypertension given that he is overweight. A. 0.82 В. О.78 C.O.12 D. 0.90 20. A die is called "balanced" or "fair" if each side is equally likely to land on top. Assign a probability to each outcome in the sample space for the experiment that consists of tossing a single fair die. Find the probabilities of the events: "an even number is rolled" * А. 1/2 В. 1 С. 2 D. 3 21. Compare the scores: a score of 220 on a test with a mean of 200 and a standard deviation of 21 and a score of 90 on a test with a mean of 80 and a standard deviation of 8* A. A score of 90 with a mean of 80 and a standard deviation of 8 is better B. A score of 220 with a mean of 200 and a standard deviation of 21 is better. C. You cannot determine which score is better from the given information. D. The two scores are statistically the same
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