Suppose that you randomly selected 23 adults. Assume 20% of the population smoke.  Round all answers to 2 decimal places.a) Using the Range Rule of Thumb, what is the minimum number of usual smokers we can expect to get out of 23 adults?b) Using the Range Rule of Thumb, what is the maximum number of usual smokers we can expect to get out of 23 adults?c) Would it be unusual to randomly select 23 adults and get 13 smokers? No, since 13 is between the maximum and minimum usual values. Yes, since 13 is not between the maximum and minimum usual values.

Question

Suppose that you randomly selected 23 adults. Assume 20% of the population smoke.  Round all answers to 2 decimal places.

a) Using the Range Rule of Thumb, what is the minimum number of usual smokers we can expect to get out of 23 adults?


b) Using the Range Rule of Thumb, what is the maximum number of usual smokers we can expect to get out of 23 adults?


c) Would it be unusual to randomly select 23 adults and get 13 smokers?

  • No, since 13 is between the maximum and minimum usual values.
  • Yes, since 13 is not between the maximum and minimum usual values.

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