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
Serga [27]
3 years ago
15

Scientists think that robots will play a crucial role in factories in the next several decades. Suppose that in an experiment to

determine whether the use of robots to weave computer cables is feasible, a robot was used to assemble 507 cables. The cables were examined and there were 9 defectives. If human assemblers have a defect rate of 0.035 (3.5%), does this data support the hypothesis that the proportion of defectives is lower for robots than humans
Mathematics
1 answer:
Lilit [14]3 years ago
4 0

Answer:

The data support the hypothesis that the proportion of defectives is lower for robots than humans.

Step-by-step explanation:

To know if the proportion of defectives is lower for robots than humans so as to prove if the hypothesis is true.

From the data given:

Total number of cables a robot assembled = 507

Defectives = 9

To get the defect rate =  the number of defects divided by the total number of cables, multiplied by 100.

Defect rate =  (9 / 507) x 100 = 0.01775 x 100

Defect rate for the robot = 1.775‬%

From the question, a robot was used and the defect rate after the calculation is 1.775‬%. While for humans, the defect rate is 3.5%. This implies, if humans were used to assembling the same 507 cables, there will be 17.745‬ defectives.

x / 507 = 3.5%

x (defectives) = 17.745‬

Therefore, the data support the hypothesis that the proportion of defectives is lower for robots than humans.

You might be interested in
Cuál es el número que no pertenece a esta sucesión 99 koma 105 koma 111 koma 117 koma 123 koma 129 koma 135 koma 141 koma 147 ko
vladimir1956 [14]

Based on the calculations, all of the numbers belong to this arithmetic sequence.

<h3>How to calculate an arithmetic sequence?</h3>

Mathematically, the nth term of an arithmetic sequence can be calculated by using this expression:

a_n = a_1 +(n-1)d

<u>Where:</u>

  • d is the common difference.
  • a₁ is the first term of an arithmetic sequence.
  • n is the total number of terms.

Next, we would determine the common difference as follows:

d = a₂ - a₁

d = 105 - 99 = 6.

d = a₃ - a₂

d = 111 - 105 = 6.

d = a₄ - a₃

d = 117 - 111 = 6.

Based on the calculations, all of the numbers belong to this arithmetic sequence.

Read more on arithmetic sequence here: brainly.com/question/12630565

#SPJ1

Complete Question:

What is the number that does not belong to this sequence 99, 105, 111, 117, 123, 129, 135, 141, 147, 153

6 0
2 years ago
What is the solution to this equation?
WITCHER [35]

Answer:

A. x = 4

Step-by-step explanation:

7x-2(x-10)=40\\7x-2x+20=40\\5x+20=40\\5x=20\\x=4

8 0
3 years ago
Which of the following sets of numbers could be the lengths of the sides of a triangle?
kicyunya [14]

Answer is C. 8, 3, 6

To answer this, you must know the Triangle Inequality Theorem.

The two shortest sides when added together, must be greater than the longest side.

A. 2 + 4= 6 which can't work since it equals the longest side of 6

B. 4 +2=6 The sum would be less than 8, which doesn't work

C. 6 +3 = 9 the sum is greater than 8, which makes it a triangle

D. 3 +8 = 11 11 is less than 12

8 0
3 years ago
Read 2 more answers
-5y y=-2 -3x 6y=-12 substitution
IrinaK [193]
The answer would be x=4 and y=-2.
5 0
3 years ago
6.Find the equation of<br> the line:<br> through: (-2, 3) and<br> (1,5)
prohojiy [21]

Answer:

y=2/3x+4.3

Step-by-step explanation:

y=mx+c

(5-3)/(1--2)

2/3= gradient

y=2/3x +c

5=2/3(1)+c

-2/3

4.3=c

6 0
2 years ago
Other questions:
  • How many points was each multiple choice question worth?
    5·1 answer
  • Joe and Maggie are working at McDonald's joe make $8.50 per hour while Maggie makes $9.00 per hour. How much would they both mak
    5·2 answers
  • 2y+2=4x-6 in slope intercept form
    9·1 answer
  • At 11:00 p.m., the temperature in Alaska was −5°. Four hours earlier, the temperature was 40° warmer. What was the temperature a
    8·2 answers
  • alan has 12 books, vadim has 18 books. What is the ratio of the number of books they have altogether to the number of books Vadi
    7·1 answer
  • Yesterday the temperature at noon was 16.8°F. By midnight, it had dropped by
    12·1 answer
  • If it is known that x+y/y =3, find the value of the following expression:
    11·1 answer
  • PLZ HELP ME :(
    11·1 answer
  • The equivalent expression for (x-6)(4)
    5·1 answer
  • Simplify please:<br> 4x8=13-7
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!