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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.

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natima [27]

Answer:

6in

Step-by-step explanation:

Given data

Volume of the lockbox= 312 cubic inches

Height= 4in

Length= 13in

Width= ???

The expression for the volume of box is

V= L*W*H

substitute

312=13*W*4

312=52W

W= 312/52

W=6 in

Hence the width is 6in

6 0
3 years ago
What is 26% of 160?<br> A. 4.16<br> B. 6.15<br> C. 41.6<br> D. 61.5
Vinvika [58]

Answer:

41.6

Step-by-step explanation:

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88% of 443 = 389.84 Oct 31 12:47 UTC (GMT)

3% of 10,000,000 = 300,000 Oct 31 12:47 UTC (GMT)

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4 0
2 years ago
Read 2 more answers
A. 0.27 and 0.50
defon

Answer:

Part 1

a. .27 < .50

b. .33 < .75

c. 4.60 > 3.89

d. .76 > .08

e. .09 < .11

f. 3.33 > 3.30

Part 2

.27(2)= .54

.50(1)= .50

.27(2)= .54 is larger than .50 because if it was money, .54 is greater than .50

Step-by-step explanation:

3 0
3 years ago
You have large,medium, and small books in the ratio of 7:6:3 and you have a total of 32 books how many small books do you have
igor_vitrenko [27]

6 is the amount you have

6 0
3 years ago
(TRIANGLE THEOREM) please help!!
alexdok [17]
A^2 + b^2 = c^2
where a and b are the sides, and C is the hypotenuse (longest side)

basically
a + 13^2 = 16^2
so
a + 169 = 256

to find what A is, 256 - 169 = a = 87
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Answer = \sqrt{87}

6 0
3 years ago
Read 2 more answers
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