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Ksivusya [100]
3 years ago
9

In which group of statements is the conclusion not justified by the previous pair of statements?

Mathematics
1 answer:
kvasek [131]3 years ago
5 0
C i believe hope it helps
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Explain how to subtract 247 from 538
Vladimir79 [104]
8-7=1 3-4=1 5-2=3  So it is 311.
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3 years ago
To increase the value of estimated Cohen's d, a researcher increases the sample size. Will this change the value of d?
tatyana61 [14]

Answer:

a. A) Yes; as sample size increases, effect size increases.

b. A) The critical value increases.

Step-by-step explanation:

a.

If all possible samples of size N are drawn from a finite population, Np, without replacement, and the standard deviation of the mean values of the sampling distribution of means is determined then:

σx =d  √N

d = σx . √N

d ∞ N

from this, we can say d is directly proportional to √N

where σx is the standard deviation of the sampling distribution of  means and d is the standard deviation of the population’. The standard deviation of a sampling distribution of mean values is called the standard error of the means,

therefore, we can conclude that:

A) Yes; as sample size increases, effect size increases.

b.

In this estimate, tc is called the confidence coefficient for small samples,  d is the standard deviation of the sample, x is the mean value of the sample and N is the number of members in the sample.

When determining the t-value, given by

t =( (x−µ) /s) * \sqrt{N-1}

it is necessary to know the sample parameters x and s and the population parameter µ. x and s can be calculated for the sample, but usually an estimate has to be made of the population mean µ, based on the sample mean value.

from the above equation it can be deduced that t value is determined with the sample size, and as the sample size increases

A) The critical value increases.

3 0
3 years ago
A swimming pool has a length of 28 feet, a width of 16 feet, and a depth of 7 feet.
ivanzaharov [21]

Answer:

The pool can hold 3,136 cubic feet of water

Step-by-step explanation:

To know how much water the pool can hold,  we need to find the volume of this swimming pool, because the volume is how much a container can hold.

The formula for volume is L*W*H (length times width times height)

Let's multiply!

28*16*7=3136

8 0
2 years ago
Chloe is buying mixed nuts at a grocery store. She can either spend $7.93 on a 15.25 ounce bag or $11.75 on a 25 ounce bag. Whic
ehidna [41]

Answer:

25 ounce bag

Step-by-step explanation:

7.93/15.25 = $0.52/ounce

11.75/25 = $0.47/ounce

3 0
3 years ago
HEEELLLLPP!!!!!!!!!! Please help i hate algebra this is so confusing 20 pts
Salsk061 [2.6K]

Answer:

You are right

Step-by-step explanation:

So basically find the absolute maximum of the graph that the function creates, the highest peak is the spot with the greatest y-value, in this case is (60, 1600).

The x-value that creates the greatest y is also the x-value of the vertex for that function of yours (since your function has end behavior of both ends down). To find the x-value of the vertex, get the average of the 2 x-intercepts. So (20+100)/2, which is 60.

3 0
3 years ago
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