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denis-greek [22]
3 years ago
13

When a researcher needs to compare means for a variable grouped into two categories based on some less-than interval variable, a

n _ in appropriate?
Mathematics
1 answer:
kodGreya [7K]3 years ago
8 0


When a researcher needs to compare means for a variable grouped into two categories based on some less-than interval variable, a t-test is appropriate.

To add, The analysis of two populations means through the use of statistical examination is called a t-test. Small sample sizes commonly use a t-test with two samples. <span> What statisticians call as test statistics are identified as t-values. A systematized value that is calculated from sample data during a hypothesis test is called a test statistic. The procedure that calculates the test statistic compares your data to what is expected under the </span>null hypothesis<span>.

You already have an experience with the basic principles behind a t-test if you’ve tried to communicated with a distracted teenager.</span>

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Find a number such that 7 times the number is 56 greater than the opposite of the number.
Elenna [48]

Answer:

hey your answer can be 10 because the oppisite of 56 is 65 and 7x 10 is 70

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Factor the polynomial
Art [367]

Find the GCF (Greatest Common Factor)

GCF = 2x

Factor out the GCF (Write the GCF first and then, in parentheses, divide each term by the GCF.)

2x (2x^3/2x + 4x^2/2x + 6x/2x)

Simplify each term in parentheses

-2x(x^2 + 2x + 3)

<u>Answer D. -2(x^2 + 2x + 3)</u>

7 0
3 years ago
2.465/ 2.5 but I need to show my work.
Ivahew [28]

Answer:

0.986

Step-by-step explanation:

2.5 times 0.986=2.465

8 0
3 years ago
Make x the subject of the formula 3 b ( 2 x − a 2 ) = 5 d − 7 g x
n200080 [17]

Answer:

<h2>x=\frac{5d+6ba}{6b+7g}</h2>

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Fred Anderson, an artist, has recorded the number of visitors who visited his exhibit in the first 8 hours of opening day. He ha
svetoff [14.1K]

Using the scatter plot, it is found that 4 visitors were there during the fourth hour.

<h3>What is a scatter plot?</h3>
  • A scatter plot is similar to a function graph, as for each value of x, it will have the corresponding value of y.

Researching the problem in the internet, it is found that:

  • The values of x represents each hour.
  • The corresponding y-value represents the number of visitors during hour x.
  • In the plot, we have that when x = 4, y = 4, hence, 4 visitors were there during the fourth hour.

To learn more about scatter plot, you can take a look at brainly.com/question/22968877

7 0
3 years ago
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