Calculate the margin of error of a confidence interval for the difference between two population means using the given information. Round your answer to six decimal places. σ1=6.28σ1=6.28, n1=90n1=90, σ2=3.25σ2=3.25, n2=96n2=96, α=0.01
Added by Benjamin S.
Step 1
Since α = 0.01, the confidence level is 1 - α = 0.99 or 99%. To find the critical value, we can use a z-table or calculator. For a 99% confidence level, the critical value (z-score) is approximately 2.576. Show more…
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