Physics, 31.10.2019 01:31 mentatmenot

Janet performed a correlational study on the relationship of hours of sleep and performance on a midterm. she found the correlation coefficient to be .32. this indicates that

a. the relationship between sleep and exam performance is fairly strong

b. there is really no relationship between sleep and exam performance.

c. as hours of sleep increase, test performance goes down

d. as hours of sleep decreases, test performance stays the same.

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