re conducting a hypothesis test on the outcome of an Statistics test at a large state University. Your null hypothesis is that the overall class average is less than or equal to 0.80. You take a sample of 64 people (a large sample), and find that the sample average is 0.82, and the standard deviation is 0.05. Your hypothesis test will be conducted at the 0.01 significance level. You calculate

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A: n = 55xbar = 7.8s = 0.9t = -1.65

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A: n1=12,x1¯=82.3,s1=4.7n2=16,x2¯=76.9,s2=6.8

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A: 1

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A: Given information, Mean =516 Standard deviation =116