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user100 [1]
2 years ago
11

HELP ASAP. GIVING 20P AND BRAINLIEST

Mathematics
2 answers:
PilotLPTM [1.2K]2 years ago
3 0

Answer:

B

Step-by-step explanation:

edge 2020

Murrr4er [49]2 years ago
3 0

Answer:

The answer is B

Step-by-step explanation:

I did this question on edge 2020 and I got It right

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Suppose a random sample of 50 college students are asked to measure the length of their right foot in centimeters. A 95% confide
hichkok12 [17]

Answer:

A  99% confidence interval  will be wider than a 95% confidence interval

Step-by-step explanation:

From the question we are told that

  The  95% confidence interval for for the mean foot length for students at the college is found to be 21.709 to 25.091 cm

Generally the width of a confidence interval is dependent on the margin of error.

Generally the margin of error is mathematically represented as  

     E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} }

From the above equation we see that

          E \ \  \alpha \ \   Z_{\frac{\alpha }{2} }

Here  Z_{\frac{\alpha }{2} }  is the critical value of the half of the level of significance and this value  increase as the confidence level increase

Now if a  99% confidence level is  used , it then means that the value of  

 Z_{\frac{\alpha }{2} }  will increase, this in turn will increase  the margin of error and in turn this will increase the width of the confidence interval

Hence a 99% confidence interval  will be wider than a 95% confidence interval

5 0
3 years ago
What is the value of the right rectangular prism
storchak [24]
Hello!

To find the area of a rectangular prism you do 2(lw + lh + wh)

Put in the values

2(9 * 2 + 9 * 6 + 2 * 6)

2(18 + 54 + 12)

2(84)

2 * 84 = 168

The answer is 168 cubic inches

Hope this helps!

6 0
2 years ago
PLEASE HELP!!!
boyakko [2]
If ir means not, then irrational means not rational. Pi is and irrational number.
5 0
3 years ago
Read 2 more answers
The difference of a number and 8 is no more then 13
skad [1K]

x - 8 = </= 13

x could be from 9 to 21

6 0
3 years ago
On interchanging two digits of the number 2643, it decreased by 180. Which two digits of 2643 might have been interchanged?
iris [78.8K]
Answer: D. 6 and 4

Explanation:

2643 - 180 = 2463 the 6 changes to a 4, and the 4 changes to a 6.
8 0
3 years ago
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