Mathematics, 21.01.2020 03:31, DivineMemes420
Waiting times (in minutes) of customers at a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. find the coefficient of variation for each of the two sets of data, then compare the variation.
bank a (single line): 6.5 6.6 6.7 6.8 7.0 7.2 7.3 7.7 7.7 7.7
bank b (individual lines): 4.1 5.5 5.7 6.2 6.7 7.6 7.6 8.5 9.4 9.8
the coefficient of variation for the waiting times at bank a is _%.
(round to two decimal places as needed.)
the coefficient of variation for the waiting times at the bank b is _%.
(round to two decimal places as needed.)
is there a difference in variation between the two datasets?
a. there is no significant difference in the variations.
b. the waiting times at bank b have considerably less variation than the waiting times at bank a.
c. the waiting times at bank a have considerably less variation than the waiting times at bank b.
Answers: 1
Mathematics, 21.06.2019 21:30, Brendah7145
Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?
Answers: 1
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