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Snezhnost [94]
2 years ago
14

Suppose that you were going to using the Permutation approach to see if there was a difference in the amount of money spent on c

ell phone bills between in state and out of state students? IN STATE 100 90 0 80 120 Out of State 130 90 80 0 0 210 The difference in the sample means is -7. The next step is to find 10,000 permutations. When you are conducting the permutations, what are you doing? Group of answer choices Assuming the null hypothesis -- that there is no difference in cell phone bills between out of state and in state students (thus you can reshuffle the observations in each group.) Assuming the alternative hypothesis -- that there is no difference in cell phone bills between out of state and in state students (thus you can reshuffle the observations in each group.)
Mathematics
1 answer:
galina1969 [7]2 years ago
3 0

Answer:

Assuming null hypothesis - that there is no difference in the cell phone bills between out of state and in state.

Step-by-step explanation:

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Two numbers are 10 units away in different directions from their midpoint, m, on a number line. The product of the numbers is –9
Gnesinka [82]

Answer:

m {}^{2} - 100 =  - 99

Step-by-step explanation:

Set up the binomial.

(m - 10)

(m + 10)

Multiply the binomial.

(m - 10)(m + 10) =  - 99

Apply difference of squares rule

(p + q)(p - q) = p {}^{2}  - q {}^{2}

m {}^{2}  - 100 =  - 99

4 0
2 years ago
Write an expression that shows how to multiply 7 x 256 using expanded form and Distributive property.
Mashutka [201]
To multiply any number <span>using expanded form and Distributive property, we need two steps:
1. Write the greater factor in expanded form, and
2. Record partial products by using Distributive property.

Step 1.
</span><span>7 x 256  = 7 x (200 + 50 + 6)
</span>
Step 2. 
7 x (200 + 50 + 6) = 7 x 200 + 7 x 50 + 7 x 6

Hence, the complete expression should look like:
7 x 256  = 7 x (200 + 50 + 6) = 7 x 200 + 7 x 50 + 7 x 6
6 0
2 years ago
A circus ring is the arena where much of the action takes place at a circus. The figure below shows a circus ring with the cente
Goshia [24]

Answer:

Step-by-step explanation:

a) A diameter is a line that cuts a circle through at the centre. Line AD is a diameter.

Radius is half of a diameter i.e AD/2 = AO or OD

Chord is a straight line that touches the circumference of a circle. It doesn't pass through the centre like the diameter but cuts through the segments of a circle. Example of a chord is line FH

A tangent is a line that touches the circumference of a circle at just a point. It can touch any point on the circle. Example of a tangent line are AB and DE.

b) We must know that angle at a point or in a circle is 360°.

<EOH + <ECH = 360°

If <EOH = 131°

<ECH = 360° - 131°

<ECH = 229°

- <EFH falls in the circumference of the circle. Also know that, angle at the centre of a circle is twice angle at the circumference. Since <EOH is at the centre of the circle. <EFH = <EOH/2

<EFH = 131/2

<EFH = 65.5°

c) Given AB = DE, then <AB = <DE (oppositely directed angle).

Given <AOB = 20° then <DE = 20°

d) According to the diagram, <GFD = <GLD

If <GFD = 126°, then <GLD = 126°

e) Given HK = x+4, FK = x+14, GK = x, CK = x+32

From the diagram, CG = CK + KG

CG = x+32+x

CG = 2x+32

Also, FH = FK+HK

FH = x+14+x+4

FH = 2x+18

4 0
1 year ago
What is the following product? StartRoot 10 EndRoot times StartRoot 10 EndRoot
pentagon [3]

Answer:

it's 10

Step-by-step explanation:

i searched it up.

5 0
2 years ago
Steve and Ed stand next to each other and throw footballs in the air. The path of Steve’s football is described by the equation
yaroslaw [1]
Th question is clearly asking for the maximum value of both the functions, that is, the vertex of each function.

<span>The path of Ed’s football is shown by the graph clearly shows the coordinates of the vertex (the maximum value of the graph). 
</span>
That is;

              (h,k) = (1.5 , 7.5)

(h,k) represents the coordinates of the vertex.

On the other hand, <span>The path of Steve’s football is described by the equation:
               
               y = - 2x</span>²<span> + 5x + 4

Using the equation of symmetry:

               x = - b </span>÷ 2a
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a = -2

b = 5

Therefore,

               x = - 5 ÷ - 4

               x = 5 / 4

               x = 1.25

Substituting the value of x into the main equation to get the y-value.

               y = - 2x² + 5x + 4

               y = - 2(1.25)² + 5(1.25) + 4

               y = - 3.125 + 6.25 + 4

               y = 7.125

Hence, the vertex (h,k) = (1.25 , 7.125)

From the above results,<span> Ed’s</span> football reaches a greater height.

5 0
2 years ago
Read 2 more answers
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