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Posted by on Monday, May 14, 2012 at 11:20pm.

A simple random sample of 50 items from a population with σ  6 resulted in a sample
mean of 32.
a. Provide a 90% confidence interval for the population mean

  • statistics - , Tuesday, May 15, 2012 at 3:30pm

    90% = mean ± 1.645 SEm

    SEm = SD/√n

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