Project #81078 - Hypothesis Testing

University of Maryland University College is concerned that out of state students may be receiving lower grades than Maryland students. Two independent random samples have been selected: 126 observations from population 1 (Out of state students) and 203 from population 2 (Maryland students). The sample means obtained are X1(bar)=99 and X2(bar)=101. It is known from previous studies that the population variances are 10.9 and 11.4 respectively. Using a level of significance of .01, is there evidence that the out of state students may be receiving lower grades? Fully explain your answer. 

Subject Business
Due By (Pacific Time) 09/08/2015 06:00 pm
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