Percentagesa. The labels on U-Turn protein energy bars include the statement that these bars contain “125% less fat than the leading chocolate candy brands” (based on data from Consumer Reports magazine ). What is wrong with that claim?b. In a Pew Research Center poll on driving, 58% of the 1182 respondents said that they like to drive. What is the actual number of respondents who said that they like to drive?c. In a Pew Research Center poll on driving, 331 of the 1182 respondents said that driving is a chore. What percentage of respondents said that driving is a chore?

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Asked Dec 17, 2019
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Percentages

a. The labels on U-Turn protein energy bars include the statement that these bars contain “125% less fat than the leading chocolate candy brands” (based on data from Consumer Reports magazine ). What is wrong with that claim?

b. In a Pew Research Center poll on driving, 58% of the 1182 respondents said that they like to drive. What is the actual number of respondents who said that they like to drive?

c. In a Pew Research Center poll on driving, 331 of the 1182 respondents said that driving is a chore. What percentage of respondents said that driving is a chore?

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Expert Answer

Step 1

a)

We know that the range of population proportion is 0 to 1, and in the form of percent it is 0% to 100%. Since, the result 125% can’t be possible.

Step 2

b)

Given information:

The percent of driving = 0.58

Sample size (n) = 1182

Step 3

Now, the actual number of respondents who said that ...

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= The percent of driving = 0.58 ×1182 = 685.56 2 686

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