Mathematics, 06.10.2019 09:01 FoxodyGirl7134
Scores on the gre (graduate record examination) are normally distributed with a mean of 600 and a standard deviation of 120. use the 68 dash 95 dash 99.7 rule to find the percentage of people taking the test who score between 240 and 960.
Answers: 1
Mathematics, 21.06.2019 16:00
What is the solution to the inequality? 6x−5> −29, a x> −4 bx> 4 cx< 4 dx< −4
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Mathematics, 21.06.2019 18:30
Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days
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Mathematics, 21.06.2019 20:00
The scatterplot below shows the number of hours that students read weekly and the number of hours that they spend on chores weekly. which statement about the scatterplot is true?
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
Scores on the gre (graduate record examination) are normally distributed with a mean of 600 and a st...
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