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Suppose that you randomly selected 23 adults. If 20% of the population smoke, a) Using the Range Rule of Thumb (2 SD Rule), what is the minimum number of usual smokers we can expect to get out of 23 adults? Note: Round all answers to one decimal place. b) Using the Range Rule of Thumb, what is the maximum number of usual smokers we can expect to get out of 23 adults? Note: Round all answers to one decimal place. c) Would it be unusual to randomly select 23 adults and get 22 smokers? Explain! O No, since 22 is between the maximum and minimum usual values. O Yes, since 22 is not between the maximum and minimum usual values.

Suppose that you randomly selected 23 adults. If 20% of the population smoke, a) Using the Range Rule of Thumb (2 SD Rule), what is the minimum number of usual smokers we can expect to get out of 23 adults? Note: Round all answers to one decimal place. b) Using the Range Rule of Thumb, what is the maximum number of usual smokers we can expect to get out of 23 adults? Note: Round all answers to one decimal place. c) Would it be unusual to randomly select 23 adults and get 22 smokers? Explain! O No, since 22 is between the maximum and minimum usual values. O Yes, since 22 is not between the maximum and minimum usual values.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose that you randomly selected 23 adults. If 20% of the population smoke, a) Using the Range Rule of Thumb (2 SD Rule), what is the minimum number of usual smokers we can expect to get out of 23 adults? Note: Round all answers to one decimal place. b) Using the Range Rule of Thumb, what is the maximum number of usual smokers we can expect to get out of 23 adults? Note: Round all answers to one decimal place. c) Would it be unusual to randomly select 23 adults and get 22 smokers? Explain! O No, since 22 is between the maximum and minimum usual values. O Yes, since 22 is not between the maximum and minimum usual values. d) If we randomly selected 23 adults and found 22 smokers in the group, what could we conclude? We can conclude that 20% of smokers is probably incorrect, and that the percentage of smokers is greater than 20%. We cannot conclude that the 20% of smokers is probably incorrect.
Transcribed Image Text:Suppose that you randomly selected 23 adults. If 20% of the population smoke, a) Using the Range Rule of Thumb (2 SD Rule), what is the minimum number of usual smokers we can expect to get out of 23 adults? Note: Round all answers to one decimal place. b) Using the Range Rule of Thumb, what is the maximum number of usual smokers we can expect to get out of 23 adults? Note: Round all answers to one decimal place. c) Would it be unusual to randomly select 23 adults and get 22 smokers? Explain! O No, since 22 is between the maximum and minimum usual values. O Yes, since 22 is not between the maximum and minimum usual values. d) If we randomly selected 23 adults and found 22 smokers in the group, what could we conclude? We can conclude that 20% of smokers is probably incorrect, and that the percentage of smokers is greater than 20%. We cannot conclude that the 20% of smokers is probably incorrect.
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