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2 years ago

A population has a standard deviation of 32. What is the standard error of the sampling distribution if the sample size is 100?

Mathematics

2 answers:

DENIUS [597]2 years ago

8 0

Answer:

3.2

Step-by-step explanation:

Standard error = standard deviation / the root of the sample size
SE = 32 / root100
SE = 32 / 10
SE = 3.2

vagabundo [1.1K]2 years ago

5 0

Answer:

3.2

Step-by-step explanation:

Here we are told that a population has a standard deviation of 32 and that we have a sample of size 100 from this population that are asked for the standard error of the sampling distribution. Now it would be important to know what statistic we are taking from these samples. Now we would need to know what what statistic we're taking from these samples. Um I'm assuming that we're talking about sample averages in this case the standard error is well, let's sample averages are just distributed like this. They are so we have anna's big, which means that our sample averages are going to be approximately normally distributed. The mean of the sample averages will be equal to the mean of the population, and the standard air of the sample averages will be equal to the population. Standard deviation divided by the square root of the sample size. So this is our standard error of the sampling distribution, And so this is equal to 3.2. So that is your answer.

- Hope this helps! -

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ryzh [129]

Answer:

Step-by-step explanation:

Remark

This is a cosine law problem.

a = 12

b = 15

C = 83

Notice that the angle is enclosed by 2 given sides. That's what a cosine problem looks like (one of the two choices.

Formula

c^2 = a^2 + b^2 - 2ab*cos(C)

Solution

c^2 = 12^2 + 15^2 - 2*12*15 * cos(83)

c^2 = 144 + 225 - 360 * cos(83)

cos(83) = 0.1219

c^2 = 144 + 225 - 360 * 0.1219

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2 years ago

The next model of a sports car will cost 13.4% less than the current model. The current model costs $44,000. How much will the p

Nat2105 [25]

Answers
Price decrease: $5,896
Price of the next model: $38,104

Explanations:
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2 years ago

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Yuliya22 [10]

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3 years ago

A newspaper is launching a new advertising campaign in order to increase the number of daily subscribers. The newspaper currentl

BARSIC [14]

Answer:

57 days

Step-by-step explanation:

Given that:

t(0) = 26000

Growth rate (S'(t)) = 80t^1/2

Targeted number of subscribers = 49000

Take the integral of the growth rate :

∫80t^1/2dt = [(80t^(1/2 + 1)) / 1/2 + 1] + C

[(80t^(1/2 + 1)) / 1/2 + 1] + C = (80t^3/2) / 3/2 + C

(80t^3/2) * 3/2 + C = (160/3)t^3/2 + C

(160/3)t^3/2 + C

Let C = t(0)

(160/3)t^3/2 + 26000 = 49000

(160/3)t^3/2 = 49000 - 26000

(160/3)t^3/2 = 23000

Multiply both sides by 3/160

t^3/2 = 23000* 3/160

t^3/2 = 69000/160

t^3/2 = 431.25

t^(3/2 * 2/3) = 431.25^2/3

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2 years ago

How does the standard deviation help you to determine concentration of the data and whether or not there are potential outliers?

Alisiya [41]

I believe that the answer to the question provided above is that standard deviation in definition is how scattered the data are, thus it will determinr possible outliers.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.

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