# you have selected two random s

**Question description**

you have selected two random samples of size 50, one from population 1 and one from population 2. you intend to use the samples to test the following hypotheses regarding the difference in means for the two populations:

a. suppose the sample results are x1 =122 and x2=115. compute the sample test statistic, zstat assume the population standard deviation are 14 and standard deviation 2 = 18.

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