1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svetach [21]
3 years ago
10

A preliminary study of hourly wages paid to unskilled employees in three metropolitan areas was conducted. Seven employees were

included from Area A, nine from Area B, and twelve from Area C. The test statistic was computed to be 4.91.
What can we conclude at the 0.05 level?

a. Mean hourly wages in at least 2 metropolitan areas are different
b. More degrees of freedom are needed
c. Mean hourly wages of unskilled employees of all areas are equal
d. None of these is correct
Mathematics
1 answer:
Colt1911 [192]3 years ago
6 0

Answer:

Mean hourly wages in at least 2 metropolitan areas are different

Step-by-step explanation:

0.05 level indicates a 5% risk of concluding that a difference exists even  though there is no actual difference.

A test statistic is a refers to a quantity derived from the sample and it is used in statistical hypothesis testing.

A statistical hypothesis refers to a hypothesis that can be tested on the basis of observing a process that has been modelled as compared to a set of random variables.

It is a method of statistical inference.

In the given question,the test statistic was computed to be 4.91 at the o.05 level as seven employees were included from Area A, nine from Area B, and twelve from Area C when a preliminary study of hourly wages paid to unskilled employees in three metropolitan areas was conducted.

This implies mean hourly wages in at least 2 metropolitan areas are different.

You might be interested in
Given the equation of a trend line (y=15x+21), can you find the exact amount of sales given the advertising cost? Explain
alukav5142 [94]

Answer: YOU MUST USE PEMDAS

Step-by-step explanation:

pls give me brainliest im almost lvled up

5 0
3 years ago
Read 2 more answers
2. Solve 9x-16-3X=-4
vredina [299]

The Answer is "X=2" awodkawopdawdawd

7 0
3 years ago
Read 2 more answers
Is the square root of 65 rational or irrational?​
wlad13 [49]

Step-by-step explanation:

\sqrt{65}

As it can't be expressed in the form p/q, where q is not equal to 0,

<em><u>Hence</u></em><em><u>,</u></em>

<em><u>square</u></em><em><u> </u></em><em><u>root</u></em><em><u> </u></em><em><u>65</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>an</u></em><em><u> </u></em><em><u>irrational</u></em><em><u> </u></em>

3 0
2 years ago
Is the following number negative, positive or neither?<br> -6 1/2
Annette [7]

Answer:

negative.

Step-by-step explanation:

what is half of -6?

=-3, negative.

You owe your friend 6 dollars, and you have 0 dollars.

Your friend told you: you only have to pay half the money

so, instead of owing 6 dollars, you owe 3 dollars, which will still be equal to -3 dollars from your wallet :)

6 0
3 years ago
A box has a volume given by the trinomial x^3+4x^2-5x. What are possible dimensions of the box? Use factoring.
cricket20 [7]
Answer: The correct answer is Choice B.

To factor this expression, we should first factor out the variable x.

We will have:
x(x^2 + 4x - 5)

Now, all we have to do is factor x^2 + 4x - 5.

The factors of this are (x + 5)(x - 1).

If you put all of the factors together, you have: x(x + 5)(x - 1) or Choice B.
6 0
3 years ago
Other questions:
  • What is 1 7/10 divided by 3/5 ?
    5·2 answers
  • A 3-column table with 4 rows. Column 1 has entries Catfish, bass, trout, all fish. Column 2 is labeled Sample 1 with entries 3,
    12·1 answer
  • Mr. Hollis determines that he gives away $800 each month. If he gives away 16% of his budget how much is his overall budget?
    10·1 answer
  • Help a girl out please :)
    11·2 answers
  • Please help me w/ this geometry question. <br><br> image attached.
    5·1 answer
  • A pillow that usually costs $18 is marked down 25%. Use the table to find the pillow’s new price.
    11·2 answers
  • Solve the inequality -2(z + 5) + 20 7 6.
    11·2 answers
  • Any luck with this question ??
    10·2 answers
  • The sum of two numbers is 26. The larger number is 5 more than twice the smaller. What are
    9·2 answers
  • Solve the system of linear equations by substitution: (SHOW UR WORK)<br> y=5x-6<br> y=4x-2
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!