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Fed [463]
3 years ago
15

When the level of confidence and sample standard deviation remain the same, a confidence interval for a population mean based on

a sample of n = 100 will be _____ a confidence interval for a population mean based on a sample of n = 50.
A. wither than
B. narrower than
C. equal to
Mathematics
1 answer:
miskamm [114]3 years ago
6 0

Answer:

A narrower than

Step-by-step explanation:

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HELP PLEASEEEEEEEEEEEEEEE
alexira [117]

Answer:

B or 614 1/8

Step-by-step explanation:

8.5*8.5*8.5= 614 1/8

Please mark Brainlest

3 0
2 years ago
What is the percent of change if 38 is decreased to 25? round to the nearest whole number
motikmotik

Answer:

7.89474% decrease

Step-by-step explanation:

Solution:

Calculate percentage change

from V1 = 38 to V2 = 35

(V2−V1)|V1|×100

=(35−38)|38|×100

=−338×100

=−0.0789474×100

=−7.89474%change

=7.89474%decrease

7 0
2 years ago
(x4 − 9x + 5x7) + (5x − 10 + 3x4 − 2x2)
Svetlanka [38]

Answer:

(x^4 - 9·x + 5·x^7) + (5·x - 10 + 3·x^4 - 2·x^2)

x^4 - 9·x + 5·x^7 + 5·x - 10 + 3·x^4 - 2·x^2

5·x^7 + x^4 + 3·x^4 - 2·x^2 - 9·x + 5·x - 10

5·x^7 + 4·x^4 - 2·x^2 - 4·x - 10

4 0
3 years ago
PLEaSE HELP THIS IS THE LAST ONEEE!!!!!1
Ratling [72]

Answer:

range-21

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
What is the product 4n/4n-4 n-1/n+1
olga_2 [115]
4n/4n-4 × n-1/n+1
= 4n(n-1)/(4n-4)(n+1)
= (4n^2 - 4n)/(4n^2 + 4n - 4n-4)
= (4n^2 - 4n)/(4n^2 - 4)
= 4(n^2 - n)/4(n^2 - 1)
=(n^2 - n)/(n^2 - 1)
5 0
3 years ago
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