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ollegr [7]
3 years ago
13

What is the answer 5 1/6

Mathematics
1 answer:
MrRissso [65]3 years ago
5 0

Answer:

= 31/6

Step-by-step explanation:

Multiply the denominator(6) by the whole number(5) to get 30 then add it to the numerator(1) to get 31, then put it over the original denominator to get 31/6.

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You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard devia
Arturiano [62]

Answer:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (3)

n=(\frac{2.58(54.5)}{5})^2 =790.846 \approx 791

So the answer for this case would be n=791 rounded up to the nearest integer

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}   (1)

Since the Confidence is 0.99 or 99%, the value of \alpha=0.01 and \alpha/2 =0.005, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.005,0,1)".And we see that z_{\alpha/2}=2.58

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (2)

And on this case we have that ME =+5 and we are interested in order to find the value of n, if we solve n from equation (2) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (3)

n=(\frac{2.58(54.5)}{5})^2 =790.846 \approx 791

So the answer for this case would be n=791 rounded up to the nearest integer

4 0
3 years ago
Fast forward to the moment after the two outermost recursive calls complete, but before the final Merge step. Thinking of the tw
adoni [48]

Answer:

The answer is 2.

Step-by-step explanation:

1- Suppose we have following array of ten integers: 5 3 8 9 1 7 0 2 6 4.

2- Before the last merge, the left half and the right half must be sorted. So it should be

1 3 5 8 9 0 2 4 6 7

Therefore the solution is 2.

4 0
3 years ago
In the track meet I competed in the high jump and the pole vault. What is this called?
nata0808 [166]

Answer:

Within the parlance of Statistics, this is called Nominal Data.

Other examples of nominal data are:

  • Race
  • Country
  • Gender etc

Cheers

5 0
3 years ago
6x+8y=5 and 3x+4y=-2
Feliz [49]

ANSWER If you solve for x you get -4/3 y+5/6                                                                            If you solve for y you get -3/4x +5/8.

Step-by-step explanation

and then the second answer is    

If you solve for x you get-4/3y +-1/2

If you solve for y you get -3/4x +-1/2

3 0
3 years ago
Amaya's grandfather purchased a $150 savings bond when she was born. When Amaya is 30 years old, the bond will have earned 120%
Alenkinab [10]

Answer:

i think its 330 so sorry if im wrong

Step-by-step explanation:

7 0
3 years ago
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