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Question 4 1 pts A teacher wants to see if a new unit on fractions is helping shadients learn. She has five randomly selected students

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Question 4 1 pts A teacher wants to see if a new unit on fractions is helping shadients learn. She has five randomly selected students take a pre-test and a post test on the material, The scores are out of 20. Has there been improvement? (pre-post) Student 1 2 13 Pre-test 15 14 15 19 14 Post Test 19 13 12 20 18 Find the standard error

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