estimating the confidence interval for population, Basic Statistics

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estimating the confidence interval for population

Estimating the confidence interval for population mean.

The Superintendent wants to determine the average amount of hours per week the student population studies at home. Took the exam now. A study is conducted and the results are as follows: n = 25, = 6, σX = 1. Find a 90% confidence interval for µX.
a) (5.9342, 6.0658)
b) (5.8529, 6.1471)
c) (5.608, 6.392)
d) (5.671, 6.329)

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Basic Statistics: estimating the confidence interval for population

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