Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that corresponds to a sample of size 18 with a mean of 33.6 and a standard deviation of 5.9 at a confidence level of 80%. Report ME accurate to one decimal place because the sample statistics are presented with this accuracy. M.E. =

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Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that corresponds to a sample of size 18 with a mean of 33.6 and a standard deviation of 5.9 at a confidence level of 80%.

Report ME accurate to one decimal place because the sample statistics are presented with this accuracy.
M.E. =

Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.

Expert Solution
Step 1

From the provided information,

Sample size (n) = 18

Sample mean (x̅) = 33.6

Sample standard deviation (s) = 5.9

Confidence level = 80%

Level of significance (α) = 1 – 0.80 = 0.20

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