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iren [92.7K]
3 years ago
13

In a fictional study, a pretest-posttest design was used to examine the influence of a television program on children's aggressi

veness. The number of aggressive responses was measured during an observation period both before and after the television program. Determine if there is a difference in the number of aggressive behaviors in children after having viewed the television program. Before After 6 9 4 3 12 11 9 12 10 14 2 6 14 12 NOTE: If you need the standard deviations for any calculations, they are sBefore
Mathematics
1 answer:
ioda3 years ago
4 0

Answer: nationwide

Step-by-step explanation: is on ur side haha sorry not smart

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The mean (average) number of albums released by the four artists is 7 albums. Calculate the mean absolute deviation (MAD) of the
Bad White [126]

Answer:

I'm sorry I dint understand the question very well

7 0
2 years ago
Can someone help me with this problem???
Greeley [361]
Area = (39x18)/2 =351
answer = 351 m^2
8 0
3 years ago
An exam consists of 50 multiple choice questions. Based on how much you studied, for
Ann [662]

Using the Central Limit Theorem, it is found that the sampling distribution of the sample proportion of the 50 questions on which you get the correct is approximately normal, with mean of 0.7 and standard error of 0.0648.

<h3>What does the Central Limit Theorem state?</h3>

It states that for a proportion p in a sample of size n, the sampling distribution of sample proportion is approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1 - p)}{n}}, as long as np \geq 10 and n(1 - p) \geq 10.

In this problem, we have that p = 0.7, n = 50, hence the mean and the standard deviation are given as follows:

\mu = p = 0.7

s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.7(0.3)}{50}} = 0.0648

More can be learned about the Central Limit Theorem at brainly.com/question/24663213

5 0
2 years ago
Write an equation for the orbit of Saturn in the form x^2/a^2 + y^2/b^2 = 1
frozen [14]

Answer:

  x²/2166784 +y²/2159989 = 1

Step-by-step explanation:

The relationship between the semi-axes and the eccentricity of an ellipse is ...

  e = √(1 -b²/a²)

In order to write the desired equation we need to find 'b' from 'e' and 'a'.

__

<h3>semi-minor axis</h3>

Squaring the equation for eccentricity gives ...

  e² = 1 -b²/a²

Solving for b², we have ...

  b²/a² = 1 -e²

  b² = a²(1 -e²)

<h3>ellipse equation</h3>

Using the given values, we find ...

  b² = 1472²(1 -0.056²) = 2166784(0.996864) ≈ 2159989

The desired equation is ...

  x²/2166784 +y²/2159989 = 1

7 0
2 years ago
A. <br> B. <br> C.<br> D.<br> Please help
poizon [28]

Answer:

Clearly, the answer is 20/9, simplify it, and thats your answer! <3

<em>Hope that helped! <3</em>

<em>Byee!</em>

3 0
3 years ago
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