Mathematics, 06.01.2020 19:31, cuki96

The average score of all high school students in math and science is 150 with a standard deviation of 25. a random sample of 125 students in a district shows an average score of 158. at 95%, is the difference significant? follow the five-step one-sample test and write your conclusion.

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The average score of all high school students in math and science is 150 with a standard deviation o...