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boyakko [2]
3 years ago
11

If all possible samples of size n are drawn from an infinite population with a mean of 20 and a standard deviation of 5, then th

e standard error of the sampling distribution of sample means is equal to 1.0 only for samples of size:_____
Mathematics
1 answer:
Ugo [173]3 years ago
3 0

Answer:

25

Step-by-step explanation:

We know that the standard error of the sampling distribution of sample means is

Standard error=standard deviation/√n

√n=standard deviation/Standard error

n=(standard deviation/Standard error)²

We are given that standard deviation=5 and standard error=1. So,

n=(5/1)²

n=5²

n=25.

Thus, the required sample size is 25.

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Luba_88 [7]
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3 years ago
Mrs Katie constructs a cube with 512 magnetic block students and her two classes will each make an identical cube. There are 28
devlian [24]
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2 years ago
FIRST PERSON TO ANSWER GETS BRAINLIEST OR FIVE STARS Define the domain and range of the function.
uysha [10]

Answer:

Domain: (-∞, ∞)

Range: (-∞, ∞)

Step-by-step explanation:

The domain are the x-values included in the function (the horizontal axis).

The range are the y-values included in the function (the vertical axis).

The two arrows on the ends of the line (pointing upwards and downwards respectively) indicate that the function goes in those direction for infinity. Therefore, if there are an infinite amount of y-values, the range is (-∞, ∞).

While the slope is quite steep, there is still a slope and slowly "expands" the line on the horizontal axis. Because there is no limit to the y-values, the domain will also expand infinitely. Therefore, the domain is also (-∞, ∞).

7 0
1 year ago
Read 2 more answers
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Bas_tet [7]
6 x 18
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Weather forecasts are based on a weather forecaster's judgment on which one of a number of scenarios is likely to happen. Each s
Nutka1998 [239]

Answer:

2. Weather forecasts are difficult to trust

Step-by-step explanation:

Words like thus are preliminar to a conclusion, that is, we use words like thus when we are going to conclude something.

For Example:

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The conclusion is that the Patriots are a good NFL franchise.

In this problem, we have that:

Thus, it is difficult to trust weather forecasts.

The conclusion is:

2. Weather forecasts are difficult to trust

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