Mathematics, 03.12.2019 18:31 imcool666
Associate professors from research institutions has an average salary of $70,750 per year with a standard de- viation of $6000. assume also that a sample of 200 as- sociate professors from other types of institutions has an average salary of $65,200 with a standard deviation of $5000. test the hypothesis that the mean salary for associate professors in research institutions is $2000 higher than for those in other institutions. use a 0.01 level of significance.
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