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Stolb23 [73]
3 years ago
14

In formulating hypotheses for a statistical test of significance, the null hypothesis is often

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
4 0
The null hypothesis is often used as a statement <span>about the population the researcher suspects is true and is trying to find evidence for in formulating a statistical test of significance. In addition to that, it is commonly used when stating that there is no significant difference between subjects.</span>
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Chris is buying new wood flooring for his house. The cost depends on the area of the floors.
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Answer:

strong and fexible .

variable

6 0
3 years ago
A color printer prints 7 pages in 3 minutes.
mojhsa [17]

Answer:

2 pages per minute

Step-by-step explanation:

when you divide 7 by 3, your answer would be 2.3333333333 and so on.

however, you can say

iT pRiNtS 2 aNd A tHiRd pAgEs PeR MiNuTe.

you should say it prints 2 whole pages a minute.

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4 0
3 years ago
Researchers count 30 tagged zebras and 150 total zebras in an area of a game reserve. If researchers had previously tagged 80 to
Mars2501 [29]
30/150=80/x
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7 0
3 years ago
The height of a punted football can be modeled by the function: f(x) = -.0079 x2 + 1.8x + 1.5. In this equation, f(x) is the hei
mars1129 [50]

Answer:

Step-by-step explanation:

The function used to represent the height of a punted football can be modeled as

f(x) = -.0079x² + 1.8x + 1.5

Where f(x) is the height in feet, and x is the horizontal distance, also in feet.

a) when the ball was punted, x = 0, therefore, the height of the punted ball would be

f(x) = -.0079(0)² + 1.8(0) + 1.5

f(x) = 1.5 feet

The height is 1.5 feet

b) The equation is a quadratic equation. The plot of this equation on a graph would give a parabola whose vertex would be equal to the maximum height reached by the punted ball.

The vertex of the parabola is calculated as follows,

Vertex = -b/2a

From the equation,

a = - 0.0079

b = 1.8

Vertex = - - 1.8/0.0079 = 227.84 feet

So the maximum height of the punt is 227.84 feet

3 0
3 years ago
75, 75, 68, 11, 81, 69, 83, 13, 83<br> Calculate the range.
Fudgin [204]

Answer:

72

Step-by-step explanation:

The greatest number in this set is 83

The smallest number is 11

We subtract the greatest from the smallest number in a set to find the range

83-11=72

8 0
3 years ago
Read 2 more answers
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