The following sample data have been collected based on a simple random sample from a normally distributed population: 2, 8, 0, 2, 3, 5, 3, 1, 4, 2 Compute a 90% confidence interval estimate for the population mean?
Added by Justin B.
Step 1
x̄ = (2 + 8 + 0 + 2 + 3 + 5 + 3 + 1 + 4 + 2) / 10 x̄ = 30 / 10 x̄ = 3 Now, let's calculate the sample standard deviation (s): s = √[(Σ(x - x̄)²) / (n - 1)] s = √[((2 - 3)² + (8 - 3)² + (0 - 3)² + (2 - 3)² + (3 - 3)² + (5 - 3)² + (3 - 3)² + (1 - 3)² + (4 - 3)² + Show more…
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