In the EAI sampling problem (see Figure 7.8), we showed that for n =30, there was .5064
Question:
In the EAI sampling problem (see Figure 7.8), we showed that for n =30, there was .5064 probability of obtaining a sample mean within ± $500 of the population mean.
a. What is the probability that is within $500 of the population mean if a sample of size 60 is used?
b. Answer part (a) for a sample of size 120.
Figure 7.8
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a With a sample of size 60 At 52300 P 52300 Pz 97 8340 At 51300 P 51300 Pz 97 1660 P 51300 523...View the full answer
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Related Book For 
Essentials Of Modern Business Statistics With Microsoft Excel
ISBN: 9780840062383
5th Edition
Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
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