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Nina [5.8K]
3 years ago
15

The Hamden board of education wants to know how the community feels about building a new media center for the middle school. The

y called every 10th person on the registration list of 7300 voters until they had called a total of 40 voters. Which of the following are true of the sample of 40 voters? Check all that apply. The sample is not randomly chosen. The sample should be larger to give more reliable information. The sample sizes too large to aThe Hamden Board of Education wants to know how the community feels about building a new media center for the middle school. They called every 10th person on the registration list of 7300 voters until they had called a total of 40 voters. Which of the following are true of the sample of 40 voters? Check all that apply.a) The sample is not randomly chosen. B)The sample should be larger to give more reliable information. C)The sample size is too large to inference. D)The sample size is too small to represent the population. E)The sample size is too small and will show larger variation.f) The sample is invalid because it randomly chooses voters.g) The sample size is too small and can lead to false inferences.
Mathematics
2 answers:
Alex Ar [27]3 years ago
5 0

Answer:

According to the statement above, The Hamden board of education called every tenth person on the registration list. So let's analyze each case:

The sample is not randomly chosen (FALSE)

Given that the statement doesn't tell us anything about the way they choose the sample, it is reasonable to conclude that this is a randomly chosen. They called every tenth person on the registration list until the number of people was 40.

The sample should be larger to give more reliable information (TRUE)

You did not have to use mathematics to determine that you would need more information to get a conclusion. You must increase the sample, that is, the sample must be larger to give a reliable information.

The sample size is too large to make inferences (False)

This is explained in the previous item. If the sample should be lager is because the size is not too large.

The sample size is too small to represent the population (TRUE

This is true because 40 voters represent barely 0.5% of the entire list. This list has 7300 voters, so getting the conclusion from this sample doesn't provide with a strong conclusion.

The sample size is too small and will show larger variation. (FALSE)

Although the sample size is too small, the sample size not necessarily will show variation. In fact, it is possible that it does not show any variation and most of the people feel well about building a new media center for the middle school but it doesn't mean that the whole community does.

The sample is invalid because it randomly chooses voters. (FALSE)

It is false because in probability studies the sample is chosen randomly, so you get conclusions about the whole population always taking samples that represent the population as a whole.

The sample size is too small and can lead to false inferences (TRUE)

You can get false conclusions given that the sample size is too small. It's important to note that the sample size supports the conclusion of the study, so the sample must increase to have a reliable study.

UNO [17]3 years ago
4 0

Answer:

B: The sample should be larger to give more reliable information.

D: The sample size is too small to represent the population.

G: The sample size is too small and can lead to false inferences.

Step-by-step explanation:

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Answer:

y^2+xy+x+3y+2

Step-by-step explanation:

first of all we have to multiplies the y in the second bracket for all numbers in the first bracket.

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x+y+2

now we have to unite the two solutions

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A three-bedroom house in North Augusta sold for $190,000. If housing prices are expected to increase 1.8% annually in that town,
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Answer:

we know that the initial price of the house is $190,000.

We also know that the expected increase is 1.8%, this means that the year zero we have no increase; the price is $190,000.

one year after we have an increase of the 1.8% (or 0.018 in decimal form), this means that the new price is:

$190,000 + $190,000*0.018 = $190,000*(1.018)

another year after, we have:

$190,000*(1.018)*(1.018) = $190,000*(1.018)^2

and etc

The function that models the price as a function of the years, represented as y, is:

P(y) = $190,000*(1.018)^y

If we want to know the price in 5 years, we need to replace y = 5 in the equation:

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Step-by-step explanation:

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Alicia, Quentin, and Rosalyn are siblings. Alicia is the oldest sibling. Quentin is four years younger than Alicia. Rosalyn is t
tatiyna

Answer:

Alicia is 18years

Quentin is 14years

Rosalyn is 16years

Step-by-step explanation:

Let the age of Alicia be x

Let the age of Quentin be y

Let the age of Rosalyn be z

If the sum of the siblings’ ages, in years, is 48 then;

x+y+z = 48.... 1

If Rosalyn is two years older than Quentin then;

z =y+2 ..... 2

Also if Quentin is four years younger than Alicia then;

y = x-4 ... 3

From 3:

x = y+4 ... 4

Substitute 2 and 4 into 1 to have:

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Since z = y+2

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This means that;

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