What two assumptions must be met when you are using the z
What two assumptions must be met when you are using the z test to test differences between two means? Can the sample standard deviations s1 and s2 be used in place of the population standard deviations σ1 and σ2?
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the variance for a sample was found to be 49nbsp what is the sample standard
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what two assumptions must be met when you are using the z test to test differences between two means can the sample
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a sample of 9 managers with over 15 years of experience has an average salary of 71000 and a sample standard deviation
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