Question Answer The average raw math achievement score for third graders

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Question Answer The average raw math achievement score for third graders at a Smith elementary school is 137; third graders statewide score an average of 124 with a standard deviation of 7. Are the Smith third graders better at math than third graders throughout the state? Perform the correct statistical test, applying the eight steps of the hypothesis testing process as demonstrated on pp. 185–187 of Statistics for People Who (Think they) Hate Statistics. What is a research question that you would like to answer? Write the null and research hypotheses. Would you use a one- or two-tailed test? Why? What do we mean when we say that a statistical result is significant? What is the difference between a statistically significant and a meaningful result? Why is statistical significance important? Describe a Type I error for the previous study that compares third graders’ math achievement. Describe a Type II error for that study.

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(Top Tutor) Daniel C.
School: Duke University
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