A large factory that builds machines has three shifts, one that starts at 4:00 A.M., one that starts at noon, and one that starts at 8:00 P.M. The manager of the factory wanted to know whether there is an association between an employee’s work experience (less than five years with the company, between five and twenty years with the company, over twenty years with the company) and the time of the employee’s shift. The manager selected a random sample of 125 employees and classified employees by their shift time and work experience. What is an appropriate pair of hypotheses for the manager to use?

Answers

Answer 1

Answer:

if the worker has more experience, then they will have longer shifts because they will be better at their job and be able to complete more tasks.

Step-by-step explanation:

use and "if then because" structure in a hypothesis, and use common logic based on the info provided :)

Answer 2

Answer:

[tex]H_{0}[/tex] : Work experience is independent of the time of an employee's shift

[tex]H_{A}[/tex] : Work experience is dependent on the time of an employee's shift

Step-by-step explanation:

Since we have one population but multiple variables, so we are using a chi-square test of independence. Thus, our null should be that there is no association, and the alternative that there IS an association.


Related Questions

27.4 is 2.5% of what number

Answers

Answer:

1096

Step-by-step explanation:

0.025x = 27.4

x = 1096

50% of 90 change to decimal

Answers

Answer:

0.5 or 0.45

Step-by-step explanation:

this needs to be 20 characters long

Amy is 4 years older than April. Together, their age is 24. How old is April and how old is Amy?

Answers

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Answers

Answer:

156.6 meters squared

Step-by-step explanation:

There are 3 triangles for the sides. The area for a triangle is one half base times height. So we are doing one half of 9 times 9. This is 40.5. Since there are 3 of them we can just multiply 40.5 times 3 to get 121.5. And now to solve for the base triangle, it is one half of 9 times 7.8. We get 35.1. Now add together 121.5 and 35.1. We get 156.6. Now since this is surface area it is meters squared.

Can anyone help me with this answer please

Answers

Answer:

Step-by-step explanation:

simplist form for 15/25

Answers

Answer:

15/25 = 3/5

Step-by-step explanation:

The simplest form of 1525 is 35.

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Answer: 3/5

Explanation: Dividing both 15 and 25 by 5 gives you 3 and 5; 3/5.

Evaluate the expression when x = 4
8x + 6

Answers

Answer:

38

Step-by-step explanation:

could be wrong

(7^3)^3
Simplify.
Rewrite the expression in the form 7^n

Answers

Step-by-step explanation:

✧ [tex] \underline{ \underline{ \large{ \tt{R\: E \: M \: E \: M \: B \: E \: R}}} }: [/tex]

If [tex]( {x}^{a} )^{b} [/tex] is an algebraic term then [tex] {(x}^{a} )^{b} = {x}^{a \times b} [/tex] i.e When an algebraic term in the index form is raised to another index , the base is raised to the product of two indices.

⟶ [tex] \large{ \tt{( {7}^{3} ) ^{3} = {7}^{3 \times 3} = {7}^{9}}} [/tex]

☥ [tex] \boxed{ \boxed{ \large \tt{Our \: Final \: Answer : \underline{ \tt{ {7}^{9}}}}}} [/tex]

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B
280
D
C
What is the measure of angle ADB?
A. 17°

Answers

Answer:

C. 62

Step-by-step explanation:

ADC is 90 degrees. 90 - 28 = 62

10 exponent 2 + (6-3) + ( 4x9) =

Answers

Answer:

10 exponent 2 + (6-3) + (4x9) = 139

Step-by-step explanation:

The correct answer is 139

paul invested $400 into an account with a 5.5% interest rate compounded monthly. How much will paul's investment be worth in 8 years?

Answers

Answer:

3024

Step-by-step explanation:

get the answer of 5.5% of 400, which is 22.

subtract 22 from 400, which is 378.

multiply 378 by 8, which is 3024.

Answer:

By using a compound interest calculator, we can know the answer which is $621

Step-by-step explanation:

simplify 3 - 5 (-3n + 5)​

Answers

Answer:

I think it's 15n-22

Step-by-step explanation:

I hope this is correct!

Click an Item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag
the item to the trashcan. Click the trashcan to clear all your answers.
Express In simplified exponential notation.
18a^3b^2/ 2ab

Answers

Answer:

18a^3b^2/2ab

To simplify the given expression, we apply property of exponents

18/2 = 9

x^m / x^n= x^ (m-n) In division we subtract the exponents

So given expression becomes

9a^2b

The answer has only positive exponents

i think this is what you want?

The simplified exponential notation of the given expression is [tex]9a^2b[/tex].

The given expression is: [tex]\frac{18a^3b^2}{2ab}[/tex]

What is an exponential expression?

An expression in the form of [tex]a^pb^qc^r[/tex].. is called exponential expression.

We can write the above expression as:

[tex](\frac{18}{2} )(\frac{a^{3} }{a} )(\frac{b^{2} }{b} )[/tex]

We know that [tex]\frac{a^m}{a^n} =a^{m-n}[/tex]

[tex]\frac{a^{3} }{a} =a^{3-1} =a^{2} \\\frac{b^{2} }{b}=b^{2-1} =b[/tex]

So, [tex](\frac{18}{2} )(\frac{a^{3} }{a} )(\frac{b^{2} }{b} )[/tex] =[tex]9a^2b[/tex]

Hence, the simplified exponential notation of the given expression is [tex]9a^2b[/tex].

To get more about polynomials visit:

https://brainly.com/question/2833285

The graph shows two lines, A and B. How many solutions are there for a pair of equations for lines A and B? Explain your answer. If I get it right I’ll give brainliest!!!

Answers

Answer:

There is only 1 solution

[tex](x,y) = (1,4)[/tex]

Step-by-step explanation:

Given

Lines A and B

Required

The number of solution for a pair of A and B

From the graph, lines A and B have only one point of intersection.

This point of intersection represents the solution

Since, there is only 1 point, there is only one solution.

And the solution is:

[tex](x,y) = (1,4)[/tex]

Find the slope of the line that passes through (1, -19) and (-2, -7)

Answers

Answer:

y = -4x-15

Step-by-step explanation:

y = ax+b

-19=a+b

-7=-2a+b

==> a = -4

b = -15

The graph shows a proportional relationship. Which equation matches the graph? ​

Answers

Answer:

3x

Step-by-step explanation:

I think the answer is C. y=3x
Explanation: The reason I said that’s the answer is because if you do 1 x 3 you get 3 and if you do 3 x 3 that gives you 9.
Hopes this help apologize in advance if my answer is wrong :(

-3(4x - 2) = 42

A x=3
B x=-3
C x=3.67
D x=7

Answers

Answer:

B) x=-3

Step-by-step explanation:

-3(4x-2)=42

4x-2=42/-3

4x-2=-14

4x=-14+2

4x=-12

x=-12/4

x=-3

It’s worth 13 points thank you!
:)

Answers

Answer: the answer is the 3rd bubble:)

Step-by-step explanation:

simplify the following expression 3 x 6 + 5 x 2 diveded by 7
I needed the answer in one second please

Answers

Answer:

4

Step-by-step explanation:

3x6+5x2
-------------
7
18+10
--------
7

28
----
7

4

12y2/3, 14a^3a ,b^5c a monomial or not​

Answers

Answer:

The fist one doesnt make sense as a term but other two are monomials

Step-by-step explanation:

A circle has a diameter of 24 cm. Which expression
could represent the area of this circle in square cm?

Answers

36 I think but don’t trust me trust GOD THE ALMIGHTY.

Chace scored 7, 9, 5, 3, 15 and 15 points in 6 basketball games. What is the mode of the number of points he scored in those games?

Answers

Answer:

15

Step-by-step explanation:

mode is the number that appears most often. 7,9,5 and 3 all show up once, but 15 shows up twitch

What is the slope of the line m?

Answers

Answer:

I think the answer us-1/2

What is the perimeter and area of the composite figure?

Answers

Answer:

P = 33

A = 3900

Step-by-step explanation:

how many cookies will Tina have if she bakes 7 more batches more than the maximum number of batches in the table

Cookies baked (y) is a function of number of batches (x).
Number of batches___total number of cookies
5__180
6__198
7__216
8__234
9__252​

Answers

Answer:

5

Step-by-step explanation:

How much interest is earned in 5 years on $8400 deposited in an account paying 6% interest, compounded semiannually? (Round your answer to two decimal places.)

Answers

Answer:

£11241.09

Step-by-step explanation:

100+6 = 106%

106% = 1.06

8400 x 1.06^5= £11241.09485

Round to 2 d.p = £11241.09

Hope this helps

x/4−1=3

What is the value of x?

Answers

Answer:

x = 16

Step-by-step explanation:

x/4 - 1 = 3

x/4 = 3+1

x/4 = 4

x = 4*4

x = 16

Answer:

x=16

Step-by-step explanation:

always multiply denominator by whatever it is to the number behind the equl sign after subtracting that one it would be whatever that number is *4

What is the length of side BC of the triangle?

Answers

Answer: -9

Step-by-step explanation: it is -9 because 3x-3 equals -9. I hope this will help!

PLEASE ANSWER!!!!!!!!!!!!!!!!!!!!!!!!

Answers

I am pretty sure the answer is letter C

I can say it’s C
Explanation: just try it

Easy question What is the answer??

Answers

Answer:

72.5

Step-by-step explanation:

Answer:

72.5

Step-by-step explanation:

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