In a study of proctored and non proctored tests in an online Intermediate Algebra course, researchers obtained the data for test results given below. With a 98% level of confidence determine if it seems to make a difference whether or not the online tests

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Data for the proctored group: {55.4, 67.1, 83.2, 72.9, 90.6, 61.7, 55.6, 59.2, 85.8, 83.2}

Data for the non-proctored group: {76, 76.9, 85.7, 83.5, 94.8, 84, 75.4, 77, 85.4, 91, 98.8}

critical value =

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test statistic =
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