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A random sample of 36 statistics students were asked to add a column of numbers. The amount of time required to compute the sum was recorded for each student. The sample mean time was 54 seconds with a sample standard deviation of 18 seconds.
1. Construct a 95% confidence interval for mu, the mean time for the population of statistics students, to solve those problems

  • statistics -

    95% = mean ± 1.96SEm

    SEm = SD/√n

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