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Step 1 of 2: Find the point estimate for the true difference between the population means. Step 2 of 2: Construct the 98%98% confidence interval. Round your answers to one decimal place.

Step 1 of 2: Find the point estimate for the true difference between the population means. Step 2 of 2: Construct the 98%98% confidence interval. Round your answers to one decimal place.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Step 1 of 2: Find the point estimate for the true difference between the population means. Step 2 of 2: Construct the 98%98% confidence interval. Round your answers to one decimal place.
A researcher compares the effectiveness of two different instructional methods for teaching anatomy. A sample of 201 students using Method 1 produces a testing average of 76.5. A sample of 244 students using Method 2 produces a testing average of 81.2. Assume that the population standard deviation for Method 1 is 18.88, while the population standard deviation for Method 2 is 15.43. Determine the 98 % confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2.
Transcribed Image Text:A researcher compares the effectiveness of two different instructional methods for teaching anatomy. A sample of 201 students using Method 1 produces a testing average of 76.5. A sample of 244 students using Method 2 produces a testing average of 81.2. Assume that the population standard deviation for Method 1 is 18.88, while the population standard deviation for Method 2 is 15.43. Determine the 98 % confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2.
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