Question: Find its values 1. Given observations from two normally distributed populations, test the hypothesis that the difference in means (population A - population B) is

Find its values

is equal to 4.0 versus the alternative that the difference is less

1. Given observations from two normally distributed populations, test the hypothesis that the difference in means (population A - population B) is equal to 4.0 versus the alternative that the difference is less than 4.0 using the observed significance level with a reference rejection level of 0.05. The known population variance from population A is 16.0 and from population B is 36.0. The observed sample mean from a sample of size 13 from population A is 12.0, and from a sample of size 16 from population B is 10.0. What is the value of the test statistic.

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