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Firlakuza [10]
3 years ago
13

Four different statistics have been proposed as estimators of a population parameter. To investigate The behavior of these estim

ators, 500 random samples are selected from a known population and it statistic is calculated for each sample. The true value of the population parameter is 75. the graphs below show the distribution of values for each statistic.
A. Which of the statistics appear to be unbiased estimators of the population parameter? How can you tell?

B. Which of the statistics a or B would be better estimate or of the population parameter? Explain your choice.

C. Which of the statistics of your day would be better estimator of the population parameter? Explain your choice.

Mathematics
1 answer:
GREYUIT [131]3 years ago
8 0

Based on the information given, the statistics that appear to be unbiased estimators of the population parameter is statistics A.

<h3>Solving the statistics.</h3>

It should be noted that statistic A is the unbiased estimator of the population parameter. This is because it's centered around the population parameter which is 75.

The statistic that would be a better estimate of the population parameter is statistic A. This is because the sample mean is equal to the population mean which is 75.

The statistic that would be a better estimator of the population parameter is statistic D since it's equal to the population means.

Lastly, it should be noted that statistic C has no distribution shape.

Learn more about statistics on:

brainly.com/question/15525560

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Step-by-step explanation:

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3 years ago
Write an inequality that would include the point (3,78), (0,312), (5,10) to be part of the solution.
just olya [345]

Answer:

We want to write an inequality with the points (3, 78), (0, 312) and (5, 10) as solutions.

Then the set of the x-values is {0, 3, 5}

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So if we wrote an inequality like:

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It would include all these solutions, because:

10 > 5

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And this has no restriction on the x-variable, so all the x-value range can be a solution, meaning that the points (3, 78), (0, 312) and (5, 10) are solutions to that inequality.

Another one (also trivial) can be:

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8 0
3 years ago
2n+5=20?????????????
Oksanka [162]

2n+5=20

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Divide 15 and 2 by 2

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:P

8 0
3 years ago
Read 2 more answers
Given P(x) = 2x3 - 11x2 + 18x - 15 is divided by x – 3. Use synthetic division to find the quotient and the remainder.
katrin [286]
You can find the remainder right away by simply plugging in x=3. The polynomial remainder theorem guarantees that the value of p(3) is the remainder upon dividing p(x) by x-3, but I digress...

Synthetic division yields

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.    |           6   -15     9
- - - - - - - - - - - - - - - - -
.    |   2     -5     3     -6

which translates to

\dfrac{2x^3-11x^2+18x-15}{x-3}=2x^2-5x+3-\dfrac6{x-3}

(and note that p(3)=2(3)^3-11(3)^2+18(3)-15=-6, as expected)
5 0
3 years ago
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