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klemol [59]
2 years ago
15

Look at the image, can someone check this plz?

Mathematics
1 answer:
Art [367]2 years ago
6 0
Yay! you did it right!!!
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It is known that the population variance is 144. At 95% confidence, what sample size?a. 22.b. 23.c. 24.d. 25.e. none of the abov
romanna [79]

Answer:

(E) None of the above

Step-by-step explanation:

The statistic provided is that of the population but the statistic you seek is that of the sample.

Looking at the statistic itself, Variance is the square of Standard Deviation or standard deviation is the square root of variance.

Hence you calculate the standard deviation of the population mean:

√144 = 12

The population standard deviation of/from the mean value is 12.

It could be possible to decipher the sample mean from population mean but not sample size.

So, you can't pick just any answer. Population size should be given first.

3 0
3 years ago
A total feet of snow falls over three days. On the first day, 1/6 of the total snow falls. One the second day, 7/12 of the total
Marta_Voda [28]

Answer:

If it wants to know the total on day 3, then the answer is 3/12, or 1/4 (fully simplified).

Step-by-step explanation:

1/6 + 7/12 = 3/4

This means that you would need 1/4 more inches of snow. 3/12 is the answer before simplification, and 1/4 is the fully simplified answer.

4 0
2 years ago
Jack runs a company and is constantly under pressure. When he went to the doctor recently, he was advised to engage in aerobic e
bixtya [17]
Hello Friend!

The disease that Jack was most likely diagnosed with is "Hypertension".

The Correct Option among all the options that are given in the question is the 3rd Option or
 
Option "C".


Ps. Exercise will actually keep the blood flow normal and help to control the hypertension. 

I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)

(Ps. Mark As Brainliest IF Helped!)

-TheOneAboveAll :D
3 0
3 years ago
You have $9000 with which to build a rectangular enclosure with fencing. The fencing material costs $30 per meter. You also want
antoniya [11.8K]

Answer:i explained it

Step-by-step explanation:

The total cost of the fence will be 30(2L + 2W) + 2*25 W <= 9000

60L + 110W <= 9000

60 L <= 9000 - 110W

L <= 150 - 11/6 W

For a given width, the maximum area will correspond to the maximum length, so we can just go ahead and say L = 150 - 11/6 W

A = LW = (150 - 11/6 W) W

A = 150 W - 11/6 W2

A' = 150 - 11/3 W = 0

150 = 11/3 W

W = 450/11

8 0
4 years ago
Considerando la función f(x) = 2x + 1. La imagen de la función cuando x = 2 es:
frosja888 [35]
I dont know that language
5 0
4 years ago
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