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Statistics

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suppose a random sample of 360 students is drawn form a population of students. Among sampled, the average IQ score is 12 with standard deviation of 3. What is the upper confidence limit of the 95% confidence interval of the population

  • Statistics -

    ZInterval
    (11.69,12.31)
    average = 12
    n = 360
    upper limit is 12.31 according to my TI-83 Plus calculator

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