A random sample of 20 observations gave the following summary statistics: xi = 234 and Xi2 =

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A random sample of 20 observations gave the following summary statistics: ∑xi = 234 and ∑Xi2 = 3048. Assuming that the data may be looked upon as a random sample from a normal population, construct a 95% confidence interval for the actual average, µ.
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Mathematical Statistics With Applications In R

ISBN: 9780124171138

2nd Edition

Authors: Chris P. Tsokos, K.M. Ramachandran

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