Operations And Supply Chain Management Assignment Help – A random sample

Question – A random sample of 144 observations has a mean of 20, a median of 21, and a mode of 22. The
population standard deviation is known to equal 4.8. The 95.44% confidence interval for the
population mean is
a. 15.2 to 24.8
b. 19.200 to 20.800
c. 19.216 to 20.784
d. 21.2 to 22.8
Nov 27 2013 09:49 AM

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