Mathematics, 04.08.2020 17:01 lindseylewis313
The peanut crop was harvested from five fields of various area. The following data are the mass of the crop from each field y (in kilograms) and the field area x (in hectares).y 7480 15530 13400 20070 12950x 2.26 3.72 3.61 4.02 2.84Required:a. Fit the simple linear regression model using the method of least squares. Find the estimate of ^2.b. What change in the mean mass is expected when the field area changes by 1 hectare?c. Calculate the fitted value of y corresponding to x = 2.26. Find the corresponding residual. d. Estimate the mean mass of the crop harvested from 2.5 hectares.
Answers: 2
Mathematics, 21.06.2019 14:30
Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?
Answers: 1
Mathematics, 21.06.2019 18:10
Jordan has $5.37, which he is using to buy ingredients to make salsa. he is buying one red pepper for $1.29 and three pounds of tomatoes. if jordan has exactly the right amount of money he needs, what is the price per pound of the tomatoes? choose the correct equation to represent this real-world problem. solve the equation and verify the reasonableness of your answer. a pound of tomatoes costs .
Answers: 1
Mathematics, 21.06.2019 22:30
Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?
Answers: 1
Mathematics, 21.06.2019 22:40
(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.
Answers: 3
The peanut crop was harvested from five fields of various area. The following data are the mass of t...
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