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damaskus [11]
2 years ago
6

When is it appropriate to use the paired t test (involving the mean of the differences)? A. When two independent samples are com

pared. B. When two dependent samples are compared. C. When four samples are compared at once. D. When any two samples are compared.
Mathematics
1 answer:
sveticcg [70]2 years ago
7 0

Answer:

B. Two dependent samples are compared

Step-by-step explanation:

We use it when we are comparing Two dependent samples. The paired t-test can be likened to the repeated measures ANOVA test. Both of these two test are useful when comparing how a static group does in different test conditions.

But the difference between these two are:

We use the paired t-test if the explanatory variable has two levels.

While the Repeated measures ANOVA is used when the explanatory variable has greater than two levels.

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Consider a population with population proportion p, and a sample from the population with sample proportion pˆ. Which of the fol
Deffense [45]

According to CollegeBoard.org:

<u>Answer</u>: "To estimate the probability of observing a value as extreme as  pˆ  given  p."

<u>Explanation</u>: "The test statistic for a one-sample z-test is the distance, in units of standard deviations, between the statistic and the given parameter. From that distance, probabilities (a p-value) can be calculated and a claim can be assessed."

3 0
2 years ago
The seating capacity of a theater is 250. Tickets are $3 for children and $5 for adults. The theater must take in at least $1100
maksim [4K]

Answer:

x + y ≤

3x + 5y ≥ 1100

Step-by-step explanation:

Given:

Seating capacity of theater = 250

Cost of each child ticket = $3

Cost of each adult ticket = $5

Cost per performance = $1100 at least

Find:

System of inequalities

Computation:

Let;

x = Number of children's tickets

y = Number of adult tickets

So

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5 0
2 years ago
What Is 89.519 Rounded To The Nearest Whole Number
11111nata11111 [884]
5 and above give it a shove, 4 and below let it go
So if the number in the tenths spot it 5 and above you round up, if it is 4 and below you take the whole number in the original number used and that is your answer. In this case the tenth spot is 5 so you round it to 90
7 0
3 years ago
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The ratio 25:45 in simplest form is
stepladder [879]
25/45=(5∗5)/(5∗9)=5/9

5/9 is the answer.
5 0
3 years ago
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Part A If their food and beverages cost $25.30 and there is an 8% meals tax, how much is the bill? (Find the 8% tax then add it
dmitriy555 [2]

Answer:

Step-by-step explanation:

Tax

Meal plus tax = 25.3 + 8/100 * 25.3

Meal plus tax = 25.3 + 2.024             Round later. Find the total.

Meal plus tax = 27.324

Meal plus tax = 27.32 rounded to the nearest cent.

Tip

Total cost = 27.324 + 27.324 * 18 /100

Total cost = 4.91832 + 27.324

Total cost = 32.242

Rounded to nearest cent = 32.24     You should always round at the last step.

3 0
3 years ago
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