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charle [14.2K]
3 years ago
15

Suppose the true proportion of voters in the county who support a restaurant tax is 0.5. Consider the sampling distribution for

the proportion of supporters with sample size n = 165.
What is the mean of this distribution?
Mathematics
1 answer:
Ahat [919]3 years ago
4 0

Answer:

the mean of the sampling distribution for the proportion of supporters with sample size n = 165 is 0.5.

Step-by-step explanation:

According to the Central Limit Theorem, assuming the sampling is random and sample size is big enough (≥30) the mean of the sampling distribution is the population mean.

Therefore the mean of the sampling distribution for the proportion of supporters with sample size n = 165 is 0.5

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Answer:

b. 2

Step-by-step explanation:

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3 years ago
Complete the table below by calculating the commission and adding it to the price of the stock.
asambeis [7]

We calculate the commission and adding it to the price of the stock to get total cost.

No       Price              Total Commission                         Total cost

100    $26.25         0.06 x $2,625 = $157.50     2625 + 157.50 =2782.5

100    $19.32         0.06 x $1,932 = $115.92         1932 + 115.92 =2047.92

40     $9.77          0.06 x $390.80 = $23.45      390.80 + 23.45= 414.25

200   $5.39          0.06 x $1,078 = $64.68        1,078 + 64.68 = 1142.68      

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3 0
4 years ago
Read 2 more answers
The table shows the results of a poll of 200 randomly selected juniors and seniors who were asked if they attended prom. Find th
Zielflug [23.3K]

Answer:

(a)\frac{7}{25}

(b)\frac{19}{116}

(c)\frac{28}{125}

Step-by-step explanation:

Number of juniors who attended prom,n(J)=28

Number of seniors who attended prom,n(S)=97

  • Total of those who attended prom=125

Number of juniors who did not attend prom,n(J')=56

Number of seniors who did not attend prom,n(S')=19

  • Total of those who attended prom=75
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(a) P (a junior who did not attend prom)

P(J')=\frac{56}{200}= \frac{7}{25}

(b)

P(Senior)=\frac{116}{200}

P ($did not attend prom$ | senior)=\frac{\text{P(seniors who did not attend prom)}}{P(Senior)} \\=\frac{19/200}{116/200} \\=\frac{19}{116}

(c)P (junior | attended prom)

P(Senior)=\frac{84}{200}

P (Junior|$ attended prom$)=\frac{\text{P(juniors who attended prom)}}{P(\text{those who attended prom)}} \\=\frac{28/200}{125/200} \\=\frac{28}{125}

3 0
3 years ago
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M in
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Answer:

The copy machine makes 87.5 copies in one minute.

Step-by-step explanation:

Set up an equation to divide 4 into 350. This is because in order to know how many copies is being made in 1 minute, you need to determine the rate of copies per minute.

350 divided by 4 is 87.5.

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56=2(pi)(r)
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