Mathematics, 05.01.2021 17:00 korleone8071
A sample of 173 students using Method 1 produces a testing average of 88. A sample of 127 students using Method 2 produces a testing average of 53.5. Assume the standard deviation is known to be 12.22 for Method 1 and 13.59 for Method 2. Determine the 95% confidence interval for the true difference between testing averages for students Method 2.
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A sample of 173 students using Method 1 produces a testing average of 88. A sample of 127 students u...
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