Fifteen randomly selected college students were asked to state the number of hours they slept the previous
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a. Variance s2, using formula (2.5)
b. Variance s2, using formula (2.9)
c. Standard deviation, s
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a 1st find mean xn 10415 69 x 4 29 841 s x n1 5 19 361 5 ...View the full answer
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