Mathematics, 01.03.2021 22:10 lorip7799ov3qr0
How much noisier an streets where cars travel faster? The article "Modeling of Urban Area Stop-and-Go Traffic Noise" (P. Pamanikabud and C. Tharasawatpipat, Journal of Transportation Engineering, 1999:152-159) reports noise levels In decibels and average speed in kilometers per hour for a sample of roads. The following table presents the results.
Speed Noise
28.26 78.1
36.22 79.6
38.73 81.0
29.07 78.7
30.28 78.6
30.25 78.5
29.03 78.4
33.17 79.6
a. Compute the least-squares line for predicting noise level (y) from speed (x).
b. Compute the error standard deviation estimate s.
c. Construct a 95% confidence interval for the slope.
d. Find a 95% confidence interval for the mean noise level for streets whose average speed is 30 kilometers per hour.
e. Can you conclude that the mean noise level for streets whose average speed is 30 kilometers per hour is greater than 78 decibels?
Answers: 1
Mathematics, 21.06.2019 16:10
20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm
Answers: 1
Mathematics, 21.06.2019 22:00
Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.
Answers: 2
Mathematics, 21.06.2019 22:10
Which of the following circles have their centers in the third quadrant?
Answers: 2
Mathematics, 21.06.2019 23:10
Larry wants to buy some carpeting for his living room. the length of the room is 4 times the width and the total area of the room is 16 square meters. what is the length of the living room
Answers: 1
How much noisier an streets where cars travel faster? The article "Modeling of Urban Area Stop-and-G...
History, 06.05.2021 18:00
Mathematics, 06.05.2021 18:00
Mathematics, 06.05.2021 18:00
Business, 06.05.2021 18:00
Mathematics, 06.05.2021 18:00
Mathematics, 06.05.2021 18:00
Mathematics, 06.05.2021 18:00
Mathematics, 06.05.2021 18:00
Social Studies, 06.05.2021 18:00