A statistics instructor administers a pre-test measuring basic math skills to her class of 600 statistics...

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A statistics instructor administers a pre-test measuring basic math skills to her class of 600 statistics students. At the end of the semester, she summarizes the scores on this pre-test and final course grades. The scatter diagram is roughly football shaped. The summary statistics are: 4 Average pre-test score = 60; SD = 15 Average final score = 66, SD = 10, r= 0.2 If you know that someone's score on the pre-test and use that to predict their final score to be, how far off do you expect the prediction to be? Write your answers carrying exactly 1 decimal place. A statistics instructor administers a pre-test measuring basic math skills to her class of 600 statistics students. At the end of the semester, she summarizes the scores on this pre-test and final course grades. The scatter diagram is roughly football shaped. The summary statistics are: 4 Average pre-test score = 60; SD = 15 Average final score = 66, SD = 10, r= 0.2 If you know that someone's score on the pre-test and use that to predict their final score to be, how far off do you expect the prediction to be? Write your answers carrying exactly 1 decimal place.

Answer rating: 100% (QA)

Solution let X Pre test scole Y Final Scole x x 60 59 1434 K u... View the full answer