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Author Question: "7 out of 10 dentists recommend Brand X toothpaste." This finding is based on the results of a ... (Read 339 times)

Garrulous

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on: Jan 18, 2020

Question 1

A questionnaire is sent to 10,000 persons. 5000 responded to the questionnaire. 3000 of the respondents say that "They love chocolate ice cream." We conclude that 60% of people love chocolate ice cream. What is wrong with this survey?

Question 2

"7 out of 10 dentists recommend Brand X toothpaste." This finding is based on the results of a survey of 10 randomly selected dentists. What is wrong with this survey?
Statistical Reasoning for Everyday Life ¦ Bennett, Briggs, Triola ¦ 5th Edition
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Marked as best answer by Garrulous on Jan 18, 2020

bobsmith

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Reply #1 on: Jan 18, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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michael angel

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Reply #2 on: Aug 16, 2022
thank you
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