Answers: 1
Mathematics, 21.06.2019 20:50, brea2006
An automobile assembly line operation has a scheduled mean completion time, ÎĽ, 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 01:00, LuisBanuelos000
Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?
Answers: 1
Mathematics, 22.06.2019 02:00, arlabbe0606
(30 points). the population of a city is 45,000 and decreases 2% each year. if the trend continues, what will the population be aer 15 yrs
Answers: 2
Find the value of 7u+1 given that -5u-1=4...
Mathematics, 23.06.2020 10:57
Mathematics, 23.06.2020 10:57
Mathematics, 23.06.2020 10:57
Mathematics, 23.06.2020 10:57
English, 23.06.2020 10:57
Biology, 23.06.2020 10:57
Mathematics, 23.06.2020 10:57
Mathematics, 23.06.2020 10:57