Mathematics, 23.09.2019 05:00 mkcryer50
The teacher kept track of how long it took students to finish a test. after 20 minutes, 3 students had finished the test.
how many students were finished after 70 minutes?
a.
7
b.
8
c.
9
d.
10
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 00:50
Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters
Answers: 2
Mathematics, 22.06.2019 02:30
Witch sequence shows a pattern where each term is 1.5 times the previous term
Answers: 3
The teacher kept track of how long it took students to finish a test. after 20 minutes, 3 students h...
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