Mathematics, 07.06.2020 19:57 01moxberger
The regional transit authority for a major metropolitan area wants to determine whether there is any relationship between the age of a bus and the annual maintenance cost. A sample of buses resulted in the following data.
AgeCost
1350
2370
2480
2520
2590
3550
4750
4800
5790
5950
a. Develop the least squares estimated regression equation (to 4 decimals, if necessary).
y= +AGE
b. Test to see whether the two variables are significantly related with a=.05
-Reject null hypothesis or Do not reject null hypothesis
c. Did the least squares line provide a good fit to the observed data?
Yes or No
d. Develop a 95% prediction interval for the maintenance cost for a specific bus that is 4 years old (to 1 decimal).
to
Answers: 1
Mathematics, 21.06.2019 17:00
The equation of a circle is (x + 4)2 + (y + 6)2 = 16. determine the length of the radius. 10 4 16 8 my flower basket delivers flowers within a 20 mile radius of their store. if this area is represented graphically, with my flower basket located at (5, 2), what is the equation that represents the delivery area? (x - 2)2 + (y - 5)2 = 20 (x - 5)2 + (y - 2)2 = 20 (x + 5)2 + (y + 2)2 = 400 (x - 5)2 + (y - 2)2 = 400
Answers: 1
Mathematics, 21.06.2019 22:00
Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 β 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 β 6
Answers: 1
Mathematics, 22.06.2019 02:00
Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.
Answers: 1
Mathematics, 22.06.2019 02:30
Write the equation of the line that passes through (3, 4) and (2, β1) in slope-intercept form. (2 points) y = 3x β 7 y = 3x β 5 y = 5x β 11 y = 5x β 9
Answers: 1
The regional transit authority for a major metropolitan area wants to determine whether there is any...
Biology, 30.11.2020 19:40
Mathematics, 30.11.2020 19:40
English, 30.11.2020 19:40
Mathematics, 30.11.2020 19:40
Mathematics, 30.11.2020 19:40
Mathematics, 30.11.2020 19:40
History, 30.11.2020 19:40
Physics, 30.11.2020 19:40
Chemistry, 30.11.2020 19:40
Geography, 30.11.2020 19:40
Business, 30.11.2020 19:40
Mathematics, 30.11.2020 19:40
English, 30.11.2020 19:40