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One recent'study found that online math and statistics training quizzes worked quite well. The regression equation, 3; = 91.771 3.67912, expresses statistical dependence of the nal grade in statistics (3;) on the number of quizzes missed by students [3) in a sample of 14 statistics studenU. If the coefficient of determination is r2 = 0,8588, then the coefficient of correlation is O 0.902 O D.966 O 0.972 O 0.927 O 0.938 00.738 O 0.8588 00.927 O None of the above. Type M error is O the mistake of failing to reject the null hypothesis when it is false. 0 the mistake of rejecting the null hypothesis when it is false. 0 the mistake of rejecting the null hypothesis when it is true. 0 the mistake of failing to reject the null hypothesis when it is true. 0 None of the above. In conducting study for a pharmaceutical company, a researcher interviews 60 of its most loyal customers. This type of sampling is called 0 random sampling 0 convenience sampling 0 systematic sampling 0 stratied sampling 0 cluster sampling 0 None of the above