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 5 6 A 790.4 790.7 790.2 792.8 794.3 792.3 B 792.9 786.3 797.9 790.7 803.6 787.5 (a) Why are these matched-pairs data? A. All the measurements came from rounds fired from the same gun. B. Two measurements (A and B) are taken on the same round. Your answer is correct. C. The same round was fired in every trial. D. The measurements (A and B) are taken by the same instrument. (b) Is there a difference in the measurement of the muzzle velocity between device A and device B at the α=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 di=Ai−Bi. Identify the null and alternative hypotheses. H0: μd equals= 00 H1: μd not equals≠ 00 Determine the test statistic for this hypothesis test. t0= (need this answser) (Round to two decimal places as needed.)

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...

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	5	6
A	790.4	790.7	790.2	792.8	794.3	792.3
B	792.9	786.3	797.9	790.7	803.6	787.5

(a) Why are these matched-pairs data?

All the measurements came from rounds fired from the same gun.

Two measurements (A and B) are taken on the same round.

Your answer is correct.

The same round was fired in every trial.

The measurements (A and B) are taken by the same instrument.

(b) Is there a difference in the measurement of the muzzle velocity between device A and device B at the

α=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

di=Ai−Bi.

Identify the null and alternative hypotheses.

H0:

μd

equals=

H1:

μd

not equals≠

Determine the test statistic for this hypothesis test.

t0=
(need this answser)

(Round to two decimal places as needed.)

Jun 05, 2022

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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...

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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...

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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...