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Question

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
13 years ago

Answers

PsyDAG
90% = mean ± 1.645 SEm

SEm = SD/√n
13 years ago
Anonymous
1.396
7 years ago

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