1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
makvit [3.9K]
3 years ago
6

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 794.4 791.1 794.9 790.2 790.1 790.9
B 795.7 786.4 796.6 788.7 798.0 787.1

a. Why are these​ matched-pairs data?
b. Is there a difference in the measurement of the muzzle velocity between device A and device B at α=0.01
c. Construct a​ 99% confidence interval about the population mean difference. Compute the difference as device A minus device B. Interpret your results.
Mathematics
1 answer:
Cloud [144]3 years ago
7 0

Answer:

Step-by-step explanation:

A. Two measurements(AandB)are taken on the same round.\oIs 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.

B. 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 (__,__)?

Answer:

Open chart in StatCrunch --- Stat --- T Stats --- Paired --- Enter values: Sample 1 = A, Sample 2 = B --- Click on Confidence Interval… and enter Level which is my #%. --- Compute

You might be interested in
Question number 7 only
Mama L [17]

Answer:

the answer is (4)

.

.

.

.

.

.

.

.

.

.

.

5 0
2 years ago
Can someone tell me how to solve this and give me the answer please?
kotykmax [81]
9h^2+42h+49 no common factors trial and error try first term and last term all sings are positive since last term and middle terms are possitive factor leading term and coeficient and try those 9=3*3 49=7*7 (3h+7)(3h+7) 9h^2+21h+21h+49 9h^2+42h+49 true (3h+7)(3h+7)=(3x+7)^2 answer is (3h+7)^2 answe ris ths second one
7 0
3 years ago
When are the clock hands perpendicular
maxonik [38]
When it is straight up?
8 0
3 years ago
Read 2 more answers
Which of the following steps could be used as a short cut method to multiply 12 by 50
Ksenya-84 [330]
Use doubling and halving to solve. So halve 12 and double 50. Then solve. 6*100=600
3 0
3 years ago
Read 2 more answers
What is the x and y intercept
nika2105 [10]

Answer:

x-intercept:  (-2,0); y-intercept:  (0,4)

Step-by-step explanation:

First, focus on the y-axis.  This axis is described by the equation x = 0.  From the graph we see that the line crosses the y-axis at (0,4).  This is the y-intercept.

Next, focus on the x-axis, which is described by y = 0.  The line crosses the x-axis at (-2,0).  This is the x-intercept.

6 0
3 years ago
Other questions:
  • Find the equation for the linear function that passes through the points (−5,−6) and (10,3). Answers must use whole numbers and/
    6·2 answers
  • Can someone help me with the answer
    14·2 answers
  • An education budget went from $800,000 to $900,000. What is the approximate percent increase?
    9·2 answers
  • What is the simplified expression for the expression below 4x(x+8) +5 (x-3)
    14·1 answer
  • A) My Piano Teacher, Dr. Sisulu, is teaching me to play a Sonata by Beethoven this week.
    13·1 answer
  • The last line of a proof represents
    6·1 answer
  • A square base a side length of x+3. What is its area
    14·1 answer
  • Disneyland sells adult passes for $60 and youth passes for $30. In one day, 360 passes were sold for a total of $14,520. How man
    14·1 answer
  • Simplify the fraction completly<br> 36/100
    7·2 answers
  • An engineer is testing two designs for a catapult. She wants the catapult to launch objects 150 feet. The engineer records the d
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!