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ohaa [14]
3 years ago
13

A manufacturer of cellular phones has decided that an assembly line is operating satisfactorily if less than​ 6% of the phones m

anufactured per day are defective. To check the quality of a​ day's production, the company decides to randomly sample 30 phones from a​ day's production and test for defects. Define the population of interest to the manufacturer.
a. All the phones produced during the day in question.
b. The 30 phones sampled and tested.
c. The 30 responses: defective or not defective.
d. The 3% of the phones that are defective.
Mathematics
1 answer:
ludmilkaskok [199]3 years ago
6 0

Answer:

a) All the phones produced during the day in question.

Step-by-step explanation:

In statistics, the Population is all the objects with the same characteristics in which we have an interest in doing an experiment or statistical analysis. Sometimes to make it more simple, we take just a sample of the population and we do the experiments with them, and then the answers are used to all of the objects.

In this case, they want to analyze all the cellphones but they only take a few to do it. So the answer is a) All the phones produced during the day in question.

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The perimeter of a rectangular pool is 326 M if the length of the pool is 87 M what is its width​
sveta [45]

Half the perimeter is equal to the length plus the width.

326 /2 = 163

Length + width = 163

87 + width = 163

Width = 163 - 87

Width = 76 meters

4 0
2 years ago
What is the missing constant term in the perfect square that starts with x2 – 16x?
andre [41]

Answer:

64

Step-by-step explanation:

the expression is

x² - 16x + _

the constant term is the square of the number residing with x divided by 2

the number number x = 16

therefore the constant term is (16/ 2)²

= 8²

= 64

the formula being used here is

(x + a)² = x² + 2ax + a²

4 0
3 years ago
Find the arc length of the partial circle.
kodGreya [7K]

Answer:

Arc length of the partial circle = 3π units

Step-by-step explanation:

Given question is incomplete; please find the complete question attached.

Formula for the arc length of a circle = \frac{\theta}{360^\circ}(2\pi r)

Here θ is the angle formed by the sector at the center.

Angle that is formed at the center of the circle is = 360° - 90°

= 270°

So, length of the arc = \frac{270}{360}(2\pi)(2)

                                  = 3π

Therefore, length of the given partial circle is 3π units.

4 0
3 years ago
Read 2 more answers
Help me find y please​
Andreyy89

Answer:

103

Step-by-step explanation:

it has to add up to 180 so

180-77=103

3 0
3 years ago
−7/2÷7/5 i do not get it PLZ HELP!!! ASAP
yulyashka [42]
Okay, to start, when dividing fractions, one thing I use is to flip the numerator and denominator of the divisor and change the division sign to a multiplication sign so it would look like this: 
-7/2*5/7
Then, you would multiply straight across and you would get -35/14 which simplifies to -5/2.

4 0
2 years ago
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