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Licemer1 [7]
2 years ago
7

A researcher tests the effect of environmental condition on task performance. She uses a between subjects design and has partici

pants complete a series of math problems under different temperatures (cold, warm, hot) and noise conditions (quiet, noisy). The number of correct problems for each participant is recorded. The most appropriate test to analyze the data would be a(n) _______
Mathematics
1 answer:
nexus9112 [7]2 years ago
7 0

Answer:

<em>F test</em>

Step-by-step explanation:

<em>For any test using the F-distribution, a "F Test" is a capture-all word. In certain circumstances, as individuals speak about the F-Test, it is the F-Test to compare two variances that they actually talk about. </em>

Moreover, in a multitude of tests, the f-statistics is used such as regression analysis, the Chow test and the Scheffe test (a post-hoc ANOVA test).

One should be using Excel, SPSS, Minitab or some other form of software to run the experiment if you are running a F test.

<em><u>Steps include.</u></em>

  1. State the hypothesis of nullity and the counter hypothesis.
  2. Determine the value of F. The F value is determined using equation F = (SSE1 – SSE2/m)/SSE2/n-k, where SSE = square residual, m = number of constraints, and k = number of independent variables.
  3. Find the statistics for F (the critical value for the test). The F statistical formula is: F Statistics = group mean / mean variance of variances within the group.  
  4. The F Statistics can be found in the F-Table.  
  5. The Null Hypothesis is accepted or denied.
You might be interested in
What is x + 2/3 = -4
BartSMP [9]

Answer:

x = -14/3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

x + 2/3 = -4

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 2/3 on both sides:                    x = -14/3
3 0
2 years ago
Assume for Namibia that the opportunity cost of each hut is 200 bowls. Then which of these pairs of points could be on Namibia's
Vaselesa [24]

The pairs that would be on Namibia's production possibilities frontier are (200 huts, 40,000 bowls) and (150 huts, 30,000 bowls) (option B).

<h3>What are the pairs on the possibilities frontier?</h3>

The Production possibilities frontiers is a curve that shows the various combination of two goods a company can produce when all its resources are fully utilised.

The PPC is concave to the origin. This means that as more quantities of a product is produced, the fewer resources it has available to produce another good.

Opportunity cost of the next best option forgone when one alternative is chosen over other alternatives. The pairs that would be on the frontier are the options that have an opportunity cost of 200 bowls when 1 hut is produced.

Opportunity cost of these pairs: (200 huts, 40,000 bowls) and (150 huts, 30,000 bowls)

  • Opportunity cost = 40,000 / 200 = 200
  • Opportunity cost = 30,000 / 150 = 200

Here is the complete question:
Assume for Namibia that the opportunity cost of each hut is 200 bowls. Which of these pairs of points could be on Namibia's production possibilities frontier?

a. (200 huts, 30,000 bowls) and (150 huts, 35,000 bowls)

b. (200 huts, 40,000 bowls) and (150 huts, 30,000 bowls)

c. (300 huts, 50,000 bowl) and (200 huts, 60,000 bowls)

d. (300 huts, 60,000 bowls) and (200 huts, 80,000 bowls)

To learn more about opportunity cost, please check: brainly.com/question/26315727

#SPJ1

6 0
1 year ago
Help please! How would I solve a 2 step equation like this? 4(x-2)=14
sattari [20]

Answer: Hi!

Okay. So this equation we will solve using something called the distributive property. We use the distributive property to multiply the terms inside the parentheses (x and -2) by the term outside and in front of the parentheses (4). First, we would multiply 4 * x, which is 4x. Then, we would multiply 4 * -2, which is -8. Out equation now looks like this:

4x - 8 = 14

Our goal is to isolate the x, so now we'll use inverse operations to remove the -8 from the equation. The inverse operation for subtraction is addition, so we would add 8 to both sides:

4x - 8 = 14

   + 8  + 8

The eights cancel out, so we're left with this equation:

4x = 22

Last step! We're almost done. All we have to do now is divide 4 on both sides; in the term 4x, 4 is being multiplied by x, so the inverse operation would be division.

4x ÷ 4 = x

22 ÷ 4 = 5.5

Our equation now looks like this:

x = 5.5

So, 5.5 is equal to x! This would be your answer!

Hope this helps!

6 0
3 years ago
a committee has eleven members. there are 3 members that currently serve as the boards chairman, ranking members, and treasurer.
miss Akunina [59]

Answer:

\frac{1}{990}

Step-by-step explanation:

<u>The full question:</u>

<em>"A committee has eleven members. there are 3 members that currently serve as the boards chairman, ranking members, and treasurer. each member is equally likely to serve in any of the positions. Three members are randomly selected and assigned to be the new chairman, ranking member, and treasurer. What is the probability of randomly selecting the three members who currently hold the positions of chairman, ranking member, and treasurer and reassigning them to their current​ positions?"</em>

<em />

<em />

The permutation of choosing 3 members from a group of 11 would be:

P(n,r) = \frac{n!}{(n-r)!}

Where n would be the total [in this case n is 11] & r would be 3

Which is:

P(11,3) = \frac{11!}{(11-3)!}=\frac{11!}{8!}=11*10*9=990

So there are total of 990 possible way and there is ONLY ONE WAY for them to be reassigned. Hence the probability would be:

1/990

8 0
3 years ago
Help ! I AM Not sure what to do
o-na [289]
The answer is (3,5)
5 0
2 years ago
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