Answers: 2
Mathematics, 21.06.2019 20:50
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Mathematics, 22.06.2019 05:30
Adolphin jumps from 5 feet below the surface of the sea. jane wrote -5 to represent the death from which the dolphin jumped. what does zero represent in this situation?
Answers: 3
Mathematics, 22.06.2019 06:50
Chuck is making a salad to go with his soup. the recipe calls for 2.1 cups of lettuce per person and 0.56 ounces of salad dressing per cup of lettuce. if 11 dinner guests want salad, how many ounces of dressing will be necessary? round the answer to the nearest whole ounce. 1 ounce 2 ounces 6 ounces 13 ounces
Answers: 1
Find the derivative of the function. f(x) = 4x2 − 8x + 2...
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