(Solved) (Latest ver. Aug 2020) - Statistics : Hypothesis Testing, Variance, Confidence Intervals and Levels of Significance
The MBA department is concerned that dual degree students may be receiving lower grades than the regular MBA students. Two independent random samples have been selected. 100 observations from population 1 (dual degree students) and 100 from population 2 (MBA students). The sample means obtained are X1(bar)=83 and X2(bar)=85. It is known from previous studies that the population variances are 4.0 and 5 respectively. Using a level of significance of .05, is there evidence that the dual degree students are receiving lower grades? Fully explain your answer.
This question was answered on: Sep 16, 2020
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