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goldenfox [79]
3 years ago
12

In a hypothesis test, standard error measures ____.

Mathematics
1 answer:
Lina20 [59]3 years ago
7 0

Answer:

The correct answer is:

the amount of difference expected just by chance (b)

Step-by-step explanation:

Standard error in hypothesis testing is a measure of how accurately a sample distribution represents a distribution by using standard deviation. For example in a population, the sample mean deviates from the actual mean, the mean deviation is the standard error of the mean, showing the amount of difference between the sample mean and the actual mean, occurring just by chance. Mathematically standard error is represented as:

standard error = (mean deviation) ÷ √(sample size).

standard error is inversely proportional to sample size. The larger the sample size, the smaller the standard error, and vice versa.

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The sum of two nonnegative numbers is 100. What is the maximum value of the product of these two numbers?
Svetllana [295]
50 x 50= 2500 would work out, anything else is lower
6 0
3 years ago
How many different numbers can be obtained using five binary bits?
forsale [732]
A number composed by 5 digits: in decimal each digit can be 0,1..9 so a 5 digit number can express numbers from 0 to 99999 and they are 10 5 = 100 , 000 . A 5 bit number is something similar but with bits, i.e. binary digits.

Hope this helps ;)
8 0
3 years ago
Of the 37 teachers at Francesca's high school, 9 are female. What is the ratio of the number of male teachers to the total numbe
kvv77 [185]

Answer:

28 : 37

Step-by-step explanation:

Find how many male teachers there are by subtracting 9 from 37:

37 - 9

= 28

Create a ratio with this to the total number of teachers:

28 : 37

So, the ratio of the number of male teachers to the total number of teachers is  28 : 37.

5 0
3 years ago
Given the functions a(x) = 3x - 12 and b(x) = x-9, solve a[b(x)].
Thepotemich [5.8K]

Answer:

Step-by-step explanation:

hello :

a(x) = 3x - 12 and b(x) = x-9, so

a[b(x)]=a(x-9) =3(x-9)-12

a[b(x)]=3x-9-12

a[b(x)]=3x+21

5 0
2 years ago
Pls help will give brainlist
Ivenika [448]

Answer:

1. Yes

2. No

3. Yes

4. Yes

Step-by-step explanation:

#1

Yes, this is a function.

None of the x-values have more than one possible value for y. None of the x-values are repeated in this table.

#2

No, this is not a function.

For each and every value of x, there can only be one y. The x-value 13 has two possible values of y, 4 and -4. This is represented in the coordinates (13, 4) and (13, -4).

#3

Yes, this is a function.

The graph passes the vertical line test. If you were the pass a vertical line through the graph, it would only be touching the graph once, wherever the vertical line is placed.

#4

Yes, this is a function.

The equation given is a quadratic equation for an original parabola. All parabolas, when not inverse, are functions. This parabola opens down, so it will pass the vertical line test.

8 0
4 years ago
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