A random sample of size n = 7 from a normal population produced these measurements: 1.4, 3.6,
Question:
a. Calculate the sample variance, s2.
b. Construct a 95% confidence interval for the population variance, σ2.
c. Test H0: σ2 = .8 versus Ha: σ2 ≠ .8 using α = .05. State your conclusions.
d. What is the approximate p-value for the test in part c?
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a Calculate x i 177 x2i 4895 and n 7 Then b Indexing 2 025 and 2 975 with n 1 6 degr...View the full answer
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Related Book For 
Introduction To Probability And Statistics
ISBN: 9781133103752
14th Edition
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
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