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What is the correlation between friday and monday scores

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Reference no: EM131646511

Question: Cramming. One Thursday, researchers gave students enrolled in a section of basic Spanish a set of 50 new vocabulary words to memorize. On Friday the students took a vocabulary test. When they returned to class the following Monday, they were retested-without advance warning. Here are the test scores for the 25 students.

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a) What is the correlation between Friday and Monday scores?

b) What does a scatterplot show about the association between the scores?

c) What does it mean for a student to have a positive residual?

d) What would you predict about a student whose Friday score was one standard deviation below average?

e) Write the equation of the regression line. f) Predict the Monday score of a student who earned a 40 on Friday.

Reference no: EM131646511

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