Construct the 95% two-sided confidence interval and one-sided intervals of the population mean with the sample: 15, 30, 45, 10, 20, 8, 6, 7, 21, 25, 10, 20, 20, 30, 40.

95% Confident the population mean is within the range: 20.47+/- 1.96*11.898/sqrt(15)

13.8811 < mean <27.0589

left- sided: 15.42 (20.47-1.645*11.898/sqrt(15))

may i see the workings please ..

i got it .. i was to follow the workings you submitted .. please disregard the request for the working submitted earlier .. thank you .. thank you ..

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