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IrinaK [193]
3 years ago
9

Suppose that, in order to estimate the proportion of students who wear glasses, a sample of 100 students was collected and showe

d that 20 of the students in the sample wore glasses. a confidence interval for the population proportion of students who wear glasses is given by: .200 +/- 3.000(.040) or .080 to .320. (note that the standard error is .040.) what is the confidence level of this confidence interval?
Mathematics
1 answer:
Tomtit [17]3 years ago
7 0
99.7 because the multiplier is 3.00
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Which two numbers are solutions of 2n - 15≤ = -3 <br><br> ×║thank you║×
Gelneren [198K]

Answer:

n ≤ 6

Step-by-step explanation:

2n - 15 ≤ -3

Add 15 to both sides.

2n ≤ 12

Divide both sides by 2.

n ≤ 6

The solution of this inequality is any number less than or equal to 6. There is an infinite number of solutions. Since you are asked to pick two numbers that are solutions, I assume you have choices that were given. Look at the choices, and pick any number less than 6 and 6 itself if it is a choice.

4 0
3 years ago
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What is the distance between the points (–8, –2) and (–7, –2)?
tensa zangetsu [6.8K]
You subtract 7 from 8 and you get 1.
You do not subtract 2 from 2 because they are the same. You have to subtract coordinates that are not the same.
Another way to figure this out would be to plot the points on the coordinate plane and count how many spaces is in between.  

The answer is A.1<span />
8 0
4 years ago
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(1O POINTS!) Stephanie earns $4,000 a month, plus a 10% commission on everything she sells. If during one month, she sold $50,00
Ainat [17]

Answer:

9000$

Step-by-step explanation:

10% of 50,000 is 5000

4000 + 5000 = 9000

4 0
3 years ago
A 429 g piece of cheese costs $9.50. What will be the cost for 1.42 kg of this cheese?
stellarik [79]

The cost for 1.42 kg of this cheese will be $ 31.44 .

<h3>What does unit conversion entail?</h3>

The process of translating measurements of a given quantity between different units, frequently using multiplicative conversion factors that change the value of the measured quantity without changing its effects, is known as unit conversion. The specific circumstances and the desired result dictate the conversion process. This may be governed by a regulation, contract, set of technical requirements, or other publicly available standards.

<h3>Why is the unitary technique used? What is it?</h3>

In its simplest form, the unitary procedure is used to determine the value of a single unit from a given multiple.

How to calculate the value of one pen, for example, if 40 cost Rs. 400. To finish it, using the unitary method. Additionally, after the value of a single unit has been established, we can multiply that value by the quantity of additional units required to establish the value of the additional units. This is typically how the concepts of ratio and proportion are used. The unitary method entails calculating the value of a single unit before calculating the value of the required number of units.

Given that 0.429 kg of cheese cost $9.50

As a result, the price of 1 kg of cheese is $9.50/0.429, which is $ 22.14.

As a result, 1.42 kg of cheese will cost you $22.14 * 1.42 = $31.44.

To learn more about unit conversion, tap on the link below:
brainly.com/question/24587372

#SPJ10

5 0
2 years ago
The measures of two complementary angles are 4x+6 and 5x+3. Find x.
Juliette [100K]

4x + 6 + 5x + 3 = 90

9x +9 = 90

( Subtract 9 from 9 and 90 )

9x = 81

( Divide 9x and 81 by 9 )

x = 9

Hope this helps.

6 0
3 years ago
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