Which of the following confidence intervals also indicates a significant difference between treatments with α = .05? A)Estimate that μ₁ - μ₂ is in an interval between 2 and 10 with 90% confidence. B)Estimate that μ₁ - μ₂ is in an interval between -2 and 8 with 90% confidence. C)Estimate that μ₁ - μ₂ is in an interval between 2 and 10 with 95% confidence. D)Estimate that μ₁ - μ₂ is in an interval between -2 and 8 with 95% confidence.

Question

Quizplus · Accepted Answer

A 95% confidence interval that does not include 0 indicates a significant difference at α = .05. The interval between 2 and 10 does not include 0, suggesting a significant difference.

Which of the Following Confidence Intervals Also Indicates a Significant