[Solution Library] An entrepreneur wants to open an appliance service repair shop. She will like to know what the average home repair bill is, including the
Question: An entrepreneur wants to open an appliance service repair shop. She will like to know what the average home repair bill is, including the charge for the service call fro appliance repair in the area. She wants the estimate to be with $20 of the actual figure. She believes the range of such bills is between $30 and $600. How large a sample should the entrepreneur take if she wants to be 95% confident of the results?
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![[Solution] According to a survey by Rhnzheimer](data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20150%20150'%3E%3C/svg%3E "[Solution] According to a survey by Rhnzheimer international,")
[Solution] According to a survey by Rhnzheimer international,
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[Step-by-Step] According to US bureau of labor statistics, 20%
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[Solution] Suppose a null hypothesis is that the population mean
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(All Steps) These volcanic peaks are all different heights. If
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(See Steps) The radius of the earth is approximately 3960 miles.
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![[Solution] According to a survey by Rhnzheimer](/images/solutions/MC-solution-library-39197.jpg "[Solution] According to a survey by Rhnzheimer international,")
![[Step-by-Step] According to US bureau of labor](/images/solutions/MC-solution-library-39198.jpg "[Step-by-Step] According to US bureau of labor statistics, 20%")
![[Solution] Suppose a null hypothesis is that](/images/solutions/MC-solution-library-39199.jpg "[Solution] Suppose a null hypothesis is that the population mean")
