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Vaselesa [24]
3 years ago
13

Determine μoverbar(x)and σoverbar(x) from the given parameters of the population and the sample size. Round the answer to the ne

arest thousandth where appropriate. μ = 25, σ = 12, n = 16
SAT
1 answer:
nignag [31]3 years ago
6 0

Answer:

μoverbar(x) = 25

σoverbar(x) = 3

Explanation:

Given That :

Population mean, μ = 25,

Population standard deviation, σ = 12,

Sample size, n = 16

The sampling distribution is approximately normal from the central. Limit theorem and hence, μoverbar(x) = μ = 25

σoverbar(x) is the standard error and is obtained thus :

σoverbar(x) = σ / sqrt(n)

σoverbar(x) = 12 / sqrt(16) = 12 /4 = 3

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8 0
2 years ago
13. Disposal of waste is one of the major concerns which is affecting the environment. Which of the following methods can be use
bagirrra123 [75]

Answer:

D: recycling

Explanation:

By minimizing the use of disposable items and promoting the use of recycled articles.  

Separating biodegradable and non-biodegradable waste before dumping them.  

Recycling the non-biodegradable waste material.

5 0
3 years ago
Factor and apply the zero product property to each quadratic expressions to find the zeros of the function it defines. (show wor
ivanzaharov [21]

Answer:

In the first equation x=4 or x=-3

In the second  equation x=-4 or x=3

Explanation:

The first equation  x^2 − x − 12 can be factorized as follows:

x^2-4x+3x-12

x(x-4)+3(x-4)

x-4=0 or x+3=0

x=4 or x=-3

It is noteworthy that -x was rewritten as -4x+3x in order to solve the equation

The second equation x^2 + x − 12 can be factorized as below:

x^2+4x-3x-12

x(x+4)-3(x+4)

x+4=0 or x-3=0

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It is noteworthy that +x was rewritten as 4x-3x in order to solve the equation

5 0
3 years ago
NOBODY CAN SOLVE CORRECTLY:
iris [78.8K]

Answer:

Slope: 4/3

A (15,12)   B (6,0)

Explanation:

The y-intercept would be (0,-8)

8 0
4 years ago
If a volcanos comes up to the surface of the water will it form a mountain?
dsp73
Volcanos and Mountains are 2 different things; 

A Volcano forms around a vent which allows magma to reach the surface of Earth


A Mountain can be formed by other geological occurrences 

If it is high enough maybe you could call it a mountain but if it is right at the surface of the water i would say no

4 0
3 years ago
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