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aalyn [17]
3 years ago
10

Help!!!!! please!!!!!

Mathematics
1 answer:
swat323 years ago
3 0

Answer:

60 \times 50 \times 50 \times 80  \times 48 \times 8 |?|

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Population A and Population B both have a mean height of 70.0 inches with an SD of 6.0. A random sample of 50 people is picked f
Alex

Answer:

Sample mean from population A has probably more accurate estimate of its population mean than the sample mean from population B.

Step-by-step explanation:

To yield a more accurate estimate of the population mean, margin of error should be minimized.

margin of error (ME) of the mean can be calculated using the formula

ME=\frac{z*s}{\sqrt{N} } where

  • z is the corresponding statistic in the given confidence level(z-score or t-score)
  • s is the standard deviation of the sample (or of the population if it is known)
  • N is the sample size

for a given confidence level, and the same standard deviation, as the sample size increases, margin of error decreases.

Thus, random sample of 50 people from population A, has smaller margin of error than the sample of 20 people from population B.

Therefore, sample mean from population A has probably more accurate estimate of its population mean than the sample mean from population B.

7 0
4 years ago
A chalk board’s dimensions have an
Wewaii [24]

Step-by-step explanation:

5:3=35

5=35×3

5=105

5÷105=0.05

7 0
2 years ago
Please help me!!!!!!
Setler79 [48]

Answer:

It is an obtuse triangle I think because

7 0
2 years ago
For the Best Brain:<br><br> fun question:<br> how do I solve y = 10x + 2 when x equals 3
allsm [11]
You would plug in 3 for x, which gives you y = 10(3) + 2, and then you would use PEMDAS, which means you multiply 10 with 3 and then add two which is 32. Therefore y would equal 32. :D :D
5 0
4 years ago
Read 2 more answers
Which of the following is a characteristic of the circumcenter of a triangle? A. It is the center of the circle that can be insc
ki77a [65]
Answer is A. It is the center of the circle that can be inscribed in a given triangle
Explanation
The circumcenter is called ”the circumcenter” because it is the center of the circle that ”circumscribes” the triangle.
6 0
2 years ago
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