Mathematics, 06.05.2020 00:34 baseball1525
A simple random sample of 20 third-grade children from a certain school district is selected, and each is given a test to measure his/her reading ability. You are interested in calculating a 95% confidence interval for the population mean score. In the sample, the mean score is 64 points and the standard deviation is 12 points. What is the margin of error associated with the confidence interval
Answers: 3
Mathematics, 21.06.2019 16:50
Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.
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Mathematics, 21.06.2019 17:00
Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?
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Mathematics, 21.06.2019 21:00
Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct
Answers: 2
A simple random sample of 20 third-grade children from a certain school district is selected, and ea...
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