Question: A polling firm has declared Beyonc among the top five respected global celebrities. The distribution of her favorability rankings, measured on a scale from 0

A polling firm has declared Beyoncé among the top five respected global celebrities.

The distribution of her favorability rankings, measured on a scale from 0 to 100, in a random sample of one hundred respondents, is shown in Figure 7.24.

a. Beyoncé’s mean favorability ranking in the sample is 82.5. Imagine that the polling firm drew many repeated samples and measured Beyoncé’s favorability ranking in each. They want to know if, by random chance, their original sample included too many die-hard Beyoncé fans. Assume that the mean of the mean favorability rankings from repeated samples is 85, with a standard deviation of

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