Mathematics, 11.12.2019 21:31 MiddleSchool2005
Arandom sample of 49 measurements from a population with population standard deviation σ1 = 4 had a sample mean of x1 = 9. an independent random sample of 64 measurements from a second population with population standard deviation σ2 = 5 had a sample mean of x2 = 12. test the claim that the population means are different. use level of significance 0.01. find a 99% confidence interval for μ1 − μ2.
Answers: 2
Mathematics, 21.06.2019 15:10
5.(04.07) two different plants grow each year at different rates, which are represented by the functions f(x) = 4* and g(x) = 5x + 2. what is the first year the f(x) height is greater than the g(x) height? year 3 year 0 year 2 year 1
Answers: 1
Mathematics, 21.06.2019 18:30
The table shows the relationship between the number of cups of cereal and the number of cups of raisins in a cereal bar recipe: number of cups of cereal number of cups of raisins 8 2 12 3 16 4 molly plotted an equivalent ratio as shown on the grid below: a graph is shown. the title of the graph is cereal bars. the horizontal axis label is cereal in cups. the x-axis values are 0, 20, 40, 60, 80,100. the vertical axis label is raisins in cups. the y-axis values are 0, 10, 20, 30, 40, 50. a point is plotted on the ordered pair 40,20. which of these explains why the point molly plotted is incorrect? (a) if the number of cups of cereal is 40, then the number of cups of raisins will be10. (b)if the number of cups of raisins is 40, then the number of cups of cereal will be10. (c) if the number of cups of cereal is 40, then the number of cups of raisins will be 80. (d) if the number of cups of raisins is 40, then the number of cups of cereal will be 80.
Answers: 1
Mathematics, 21.06.2019 22:30
Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.
Answers: 2
Arandom sample of 49 measurements from a population with population standard deviation σ1 = 4 had a...
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