A researcher compares the effectiveness of two different instructional methods for teaching physiology. A sample of 60 students using Method 1 produces a testing average of 87. A sample of 61 students using Method 2 produces a testing average of 89.6. Assume that the population standard deviation for Method 1 is 9.34, while the population standard deviation for Method 2 is 14.03. Determine the 99% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2. Find the point estimate for the true difference between the population means.
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To determine the 99% confidence interval for the true difference between the testing averages of students using Method 1 and Method 2, we will follow these steps: Show more…
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