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March 27, 2017

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Consider a population with µ=93.3 and σ=5.27.
(A) Calculate the z-score for x=94.9 from a sample of size 12.
(B) Could this z-score be used in calculating probabilities using Table 3 in Appendix B of the text? Why or why not?

  • statistics - ,

    (A) z = (x - mean)/(sd/√n)
    With your data:
    z = (94.9 - 93.3)/(5.27/√12)
    I'll let you finish the calculation.
    (B) Do not have access to the table.

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