The sample variance of a random sample of 50 observations
The sample variance of a random sample of 50 observations from a normal population was found to be s2 = 45.
a. Can we infer at the 1% significance level that σ2 is less than 50?
b. Estimate σ2 with 90% confidence given that n = 15 and s2 = 12?
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the sample variance of a random sample of 50 observations from a normal population was found to be s2 45a can we infer
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