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Statistics

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When estimating a population mean μ, where the population standard deviation σ is known, we can:
a. choose a larger z value, construct a wider confidence interval, and achieve a lower confidence level
b. choose a smaller z value, construct a narrower confidence interval, and achieve a higher confidence level
c. define the limits of an interval estimate of μ as x ± zα/2σ/√n
d. define the limits of an interval estimate of μ as x ± tα/2·5/n

  • Statistics - ,

    (c) define the limits of an interval estimate of ƒÊ as x } zƒ¿/2ƒÐ/ãn
    Because sigma is known

  • Statistics - ,

    lol

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