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In: Statistics and Probability

The results of sampling independent populations: sample 1 from population 1 • mean 1000 • sample...

The results of sampling independent populations:
sample 1 from population 1
• mean 1000
• sample standard deviation 400
• sample size 50

sample 2 from population 2
• mean 1250
• sample standard deviation 400
• sample size 50
Test the HO: population 1 mean = population 2 mean at alpha = 0.01. HA: population 1 mean =/ population2 mean. This is a two-tailed test with both a negative lower critical value and a positive upper critical value. Separate variances is assumed.

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