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 13:40, aronrobinson4
1234567891011 match the reasons with the statements in the proof. given: j | | k m 1 = m 3 prove: l | | m 1. j||k, m∠3 = m∠1 if lines are ||, then corresponding angles are =. 2. m∠1 = m∠2 if alternate interior angles are =, then lines are ||. 3. m∠2 = m∠3 substitution 4. l||m given
Answers: 3
Mathematics, 21.06.2019 19:30, MariaIZweird7578
Combine the information in the problem and the chart using the average balance method to solve the problem.
Answers: 2
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