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Vilka [71]
2 years ago
15

Eighteen technicians in a cell phone repair shop are randomly selected to participate in a study comparing two screen repair tec

hniques. They are randomly assigned one of the two techniques. The manager trains 9 technicians on one technique and trains the other 9 technicians on the second technique. He then records the number of screen repairs each technician does in one week. Which inferential statistical test would be most appropriate for this scenario?
A one-sample z-test
A paired t-test
A chi-square goodness-of-fit test
A one-sample t-test
A two-sample t-test
Mathematics
1 answer:
Masteriza [31]2 years ago
8 0

Answer:

a two sample t test

Step-by-step explanation:

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The diagram shows a row of five identical tiles each in the shape of an isosceles trapezoid what is the area of one tile
Misha Larkins [42]
Get the total amount of the 5 tiles and divide it by 5.
5 0
3 years ago
Find each product.<br><br> 1. (5a3b)(2ab)<br><br> 2.5y(-y2+7y-2)<br><br> PLEASE HELP!!?!
maks197457 [2]

Answer:

<h2>1).</h2>

(5a3b)(2ab)

Expand

That's

15ab( 2ab )

we have the answer as

<h3>30a²b²</h3>

<h2>2).</h2>

5y(-y² + 7y - 2)

Expand

That's

<h3>- 5y³ + 35y² - 10y</h3>

Hope this helps you

5 0
3 years ago
Find the area of the shape. Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter you
Len [333]

Answer:

Area of given figure = 37.68 unit²

Step-by-step explanation:

Given:

Radius of given shape = 4 unit

Angle = 270°

Value of π = 3.14

Find:

Area of given figure

Computation:

Area of given figure = [Ф/360][πr²]

Area of given figure = [270/360][(3.14)(4)²]

Area of given figure = [0.75][(3.14)16]

Area of given figure = [0.75][50.24]

Area of given figure = 37.68 unit²

6 0
3 years ago
(2x−12)+( 1 2 xy−10) (2x-12)+(12xy-10) for x=8 x=8 and y=2
Ratling [72]
(2(8)-12)+(12(8)(2)-10)
(16-12)+(132-10)
4+122=126
THE ANSWER WOULD BE 126 :D

5 0
3 years ago
Brendan earns 25% more than his regular hourly rate d when he works on holidays. Write an expression to represent the hourly rat
Tanya [424]

Answer:

The expression that represents hourly rate Brendan earns working on a holiday is 1.25d.

Step-by-step explanation:

Given:

Regular hourly rate = d

Percent extra Money earned on holidays = 25% more

We need to find expression represent the hourly rate Brendan earns working on a holiday.

Solution:

Extra money earned on holidays can be calculated by Percent extra Money earned on holidays multiplied by Regular hourly rate.

framing in equation form we get;

Extra money earned on holidays = \frac{25}{100}d=0.25d

Now we will find hourly rate Brendan earns working on a holiday.

hourly rate Brendan earns working on a holiday can be calculated by sum of Regular hourly rate plus Extra money earned on holidays.

framing in equation form we get;

hourly rate Brendan earns working on a holiday = d+0.25d=d(1+0.25) =1.25d

Hence The expression that represents hourly rate Brendan earns working on a holiday is 1.25d.

4 0
3 years ago
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