The following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Complete parts (a) through (d) below. Observation 1 2 3 4 6 790.9 792.7 792.8 793.7 790.7 790.5 B 796.5 791.8 802.6 789.9 794.3 788.7 E Click the icon to view the table of critical t-values. c) Construct a 99% confidence interval about the population mean difference. Compute the difference as device A minus device B. Interpret your results. The confidence interval is (OD. (Round to two decimal places as needed.) Interpret the confidence interval. Choose the correct answer below. O A. One can be 1% confident that the mean difference in measurement lies in the interval found above. O B. One can be 99% confident that the mean difference in measurement lies in the interval found above. O C. One can be 99% confident that the mean difference in measurement is 0. O D. One can be 99% confident that the mean difference in measurement is 0.01. d) Draw a boxplot of the differenced data. Does this visual evidence support the results obtained in part (b)? OA. OB. Differences Differences OC. OD.

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter40: Signed Numbers
Section: Chapter Questions
Problem 3A
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The following data represent the muzzle velocity​ (in feet per​ second) of rounds fired from a​ 155-mm gun. For each​ round, two measurements of the velocity were recorded using two different measuring​ devices, resulting in the following data. Complete parts​ (c) through​ (d) below.

The following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data.
Complete parts (a) through (d) below.
Observation
1
3
4
6.
A
790.9
792.7
792.8
793.7
790.7
790.5
В
796.5
791.8
802.6
789.9
794.3
788.7
Click the icon to view the table of critical t-values.
.....
c) Construct a 99% confidence interval about the population mean difference. Compute the difference as device A minus device B. Interpret your results.
The confidence interval is ( | ).
(Round to two decimal places as needed.)
Interpret the confidence interval. Choose the correct answer below.
A. One can be 1% confident that the mean difference in measurement lies in the interval found above.
B. One can be 99% confident that the mean difference in measurement lies in the interval found above.
C. One can be 99% confident that the mean difference in measurement is 0.
D. One can be 99% confident that the mean difference in measurement is 0.01.
d) Draw a boxplot of the differenced data. Does this visual evidence support the results obtained in part (b)?
O A.
OB.
-12 -10 -8
-6
-4
-2 0
4
-12 -10 -8 -6
-4
-2
2
4
Differences
Differences
C.
D.
-12 -10 -8
-6
-4
-2
2
-12 -10 -8 -6 -4
-2 0
2
4
6 (
Transcribed Image Text:The following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Complete parts (a) through (d) below. Observation 1 3 4 6. A 790.9 792.7 792.8 793.7 790.7 790.5 В 796.5 791.8 802.6 789.9 794.3 788.7 Click the icon to view the table of critical t-values. ..... c) Construct a 99% confidence interval about the population mean difference. Compute the difference as device A minus device B. Interpret your results. The confidence interval is ( | ). (Round to two decimal places as needed.) Interpret the confidence interval. Choose the correct answer below. A. One can be 1% confident that the mean difference in measurement lies in the interval found above. B. One can be 99% confident that the mean difference in measurement lies in the interval found above. C. One can be 99% confident that the mean difference in measurement is 0. D. One can be 99% confident that the mean difference in measurement is 0.01. d) Draw a boxplot of the differenced data. Does this visual evidence support the results obtained in part (b)? O A. OB. -12 -10 -8 -6 -4 -2 0 4 -12 -10 -8 -6 -4 -2 2 4 Differences Differences C. D. -12 -10 -8 -6 -4 -2 2 -12 -10 -8 -6 -4 -2 0 2 4 6 (
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