A researcher asked five of his doctor friends if they thought the new Brand X lotion that he developed was effective. Four responded "yes." The researcher used the results to write a TV advertisement claiming that "4 out of 5 doctors prefer Brand X lotion." Is this a valid inference? Explain. Use pencil and paper. Explain all of the factors that are necessary for an inference to be valid. Is the inference valid? Explain. Choose the correct answer below. O A. Yes, because the doctors asked are a representative sample of the population of doctors. O B. No, because the doctors asked are not a representative sample of the population of doctors. OC. No, because 4 doctors said yes out of 9 who were asked. OD. Yes, because 4 doctors said yes out of 5 who were asked.
A researcher asked five of his doctor friends if they thought the new Brand X lotion that he developed was effective. Four responded "yes." The researcher used the results to write a TV advertisement claiming that "4 out of 5 doctors prefer Brand X lotion." Is this a valid inference? Explain. Use pencil and paper. Explain all of the factors that are necessary for an inference to be valid. Is the inference valid? Explain. Choose the correct answer below. O A. Yes, because the doctors asked are a representative sample of the population of doctors. O B. No, because the doctors asked are not a representative sample of the population of doctors. OC. No, because 4 doctors said yes out of 9 who were asked. OD. Yes, because 4 doctors said yes out of 5 who were asked.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 13CYU
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Transcribed Image Text:A researcher asked five of his doctor friends if they thought the new
Brand X lotion that he developed was effective. Four responded
"yes." The researcher used the results to write a TV advertisement
claiming that "4 out of 5 doctors prefer Brand X lotion." Is this a valid
inference? Explain.
Use pencil and paper. Explain all of the factors that are necessary
for an inference to be valid.
Is the inference valid? Explain.. Choose the correct answer below.
O A. Yes, because the doctors asked are a representative sample
of the population of doctors.
OB. No, because the doctors asked are not a representative
sample of the population of doctors.
OC. No, because 4 doctors said yes out of 9 who were asked.
OD. Yes, because
doctors said yes out of 5 who were asked.
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