Mathematics, 11.03.2020 23:21 Rocko420
Suppose the weights of seventh‑graders at a certain school vary according to a Normal distribution, with a mean of 100 pounds and a standard deviation of 7.5 pounds. A researcher believes the average weight has decreased since the implementation of a new breakfast and lunch program at the school. For a test of significance, what is the null hypothesis?
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Mathematics, 21.06.2019 16:10
Pls! does anybody know a shortcut for answering these types of questions in the future?
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Mathematics, 21.06.2019 20:50
You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2
Answers: 1
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