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
Be a detective and solve this case: There are 53 bicycles in a room, and a man is dead on the floor next to them. Why was the ma
mina [271]
<span>The 53 bicycles are the bicycle brand of playing cards. Since we all know that a deck contains 52 cards, he must have been cheating and he put another card in the deck. His buddy caught him and killed him</span>
3 0
3 years ago
HELP ME PLZ ASAPPPPPP
boyakko [2]

Answer:

(x,y) =(-4,-3) --- Vertex

x = -4 --- Axis of symmetry

Step-by-step explanation:

Given

y = -6(x + 4)^2 - 3

Solving (a): The vertex

For an equation written in

y = a(x - h)^2 + k

The vertex is:

(x,y) = (h,k)

By comparison:

y = a(x - h)^2 + k  and y = -6(x + 4)^2 - 3

-h =4       k = -3

h =-4         k = -3  

So, the vertex is:

(x,y) =(-4,-3)

Solving (b): The axis of symmetry

For an equation written in

y = a(x - h)^2 + k

The axis of symmetry is:

x = h

In (a):

h =-4

So:

x = -4

5 0
3 years ago
PLEASE HELP ME ON THIS URGENT DO NOT WASTE ANSWERS WILL MARK BRAINLIEST
Fed [463]

Answer:

Im gonna guess 6

Step-by-step explanation:

7 0
3 years ago
At the library you find nine books on a certain topic the librarian tells you that 55% of the books on this topic have been sign
sleet_krkn [62]
9 x 0.55 = 4.95, which can be rounded to the ones place.

5 books remain.
4 0
3 years ago
A 1-liter bottle of orange juice used to cost $2.85 at a food market. Its price has increased; the new price is 110 percent of t
Mama L [17]

D. 3.14

hop this helps ^o^

3 0
3 years ago
Other questions:
  • Point F is on circle C.
    14·2 answers
  • What is 18/2 expressed as a whole or mixed number
    12·1 answer
  • John wants to buy a watermelon that weighs 5.7 pounds.The watermelon is priced at $1.58 per pound.How much is the total cost of
    5·2 answers
  • What is the result when the number 64 is decreased by 4.1%? Round your answer to the nearest tenth.
    13·2 answers
  • Point T, the midpoint of segment RS, can be found using the formulas x = (1/2) (6 – 2) + 2 and y = (1/2) (4 – 6) + 6. What are t
    13·2 answers
  • Solve: 12 + (-13) - 12 - 5<br> A: 14<br> B: -12<br> C: -18<br> D: 45
    6·1 answer
  • Find the length of the missing side of the right triangle 15 and 9 Round your answer to the nearest tenth, if necessary.
    9·1 answer
  • What is the distance between tow points (1,5)(-8,4)
    5·1 answer
  • Help please need to pass this math test
    8·2 answers
  • Angle sum theorem ??
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!