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MATLAB: An Introduction with Applications

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Help with homwork

determine the test statistic to=
determine the p value
Interpret the t value

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
4
A
794.6
792.5
794.2
794.4
790.8
793.8
В
800.1
789.8
794.4
793.5
796.0
793.4
.....
(a) Why are these matched-pairs data?
A. Two measurements (A and B) are taken on the same round.
B. All the measurements came from rounds fired from the same gun.
C. The measurements (A and B) are taken by the same instrument.
D. The same round was fired in every trial.
(b) Is there a difference in the measurement of the muzzle velocity between device A and device B at the a = 0.01 level of significance? Note: A normal probability plot and boxplot of the data indicate that the differences are
approximately normally distributed with no outliers.
Let d; = A; - Bj. Identify the null and alternative hypotheses.
Ho: Hd
H1:
Determine the test statistic for this hypothesis test.
to = (Round to two decimal places as needed.)

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