At test for a mean uses a sample of 20 observations. Find the t test statistic value that has a P-value of 0.01 when the alternative hypothesis is Ha:u<0. Round your answer to two decimal places. O A. -2.20 О в. -2.54 O c. -2.86 O D. 2.54 O E. 2.20

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Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

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