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eduard
2 years ago
12

A Florida poll asked 1200 Floridians whether they would prefer an increase in taxes or a decrease in government services as a wa

y to balance the budget. 52% of respondents stated they preferred an increase in taxes. Calculate the P-value and determine whether we can conclude that the majority of Floridians support an increase in taxes. 5. What if the poll above had asked 2500 Floridians? 6. Calculate and interpret the 95% confidence interval for the previous two questions.
Mathematics
1 answer:
mojhsa [17]2 years ago
6 0

Answer:

Step-by-step explanation:

Given that a lorida poll asked 1200 Floridians whether they would prefer an increase in taxes or a decrease in government services as a way to balance the budget.

H_0: p =0.50\\H_a: p >0.50\\

(Right tailed test)

STd error assuming H0 to be true =\sqrt{pq/n} =0.0144 for n =1200

Mean difference =0.02

Test statistic =1.386

p value = 0.0823

5) If n =2500, std error would be = 0.01

Test statistic Z = 2

p value = 0.25

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The point P(6, –1) is translated according to the rule (x, y) → (x – 5, y – 2).
monitta

The <em>resulting</em> point by considering that P(x, y) = (6, - 1) and P'(x, y) = P(x, y) + (- 5, - 2) is equal to the coordinates P'(x, y) = (1, - 3). (Right choice: C)

<h3>How to determined a resulting point by translation</h3>

In this question we need to determine the new location of a point by using a <em>translation</em> formula. Translations are rigid transformations in which a point is translated on a <em>Cartesian</em> plane. We have the following formula:

P'(x, y) = P(x, y) + (- 5, - 2)     (1)

Where:

  • P(x, y) - Original point
  • P'(x, y) - Resulting point

If we know that P(x, y) = (6, - 1), then the resulting point is:

P'(x, y) = (6, - 1) + (- 5, - 2)

P'(x, y) = (1, - 3)

The <em>resulting</em> point by considering that P(x, y) = (6, - 1) and P'(x, y) = P(x, y) + (- 5, - 2) is equal to the coordinates P'(x, y) = (1, - 3). (Right choice: C)

To learn more on translations: brainly.com/question/17152175

#SPJ1

6 0
2 years ago
The elevation of city A is 60 feet above sea level; the elevation of city C is 12 feet above sea level. The elevation of city D
Likurg_2 [28]

A) 1/2*12 = 6 ft above sea level

B) Because City D is 1/2 of 6, it cannot be negative because we are not multiplying anything by a negative number.

3 0
3 years ago
Read 2 more answers
What is the graph of the equation 4x-5y=15
pantera1 [17]
Hello James!

Graph using the slope and y - intercept.
Slope: \frac{4}{5}
Y-intercept: -3

The graph looks like this ↓↓↓

6 0
3 years ago
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Moira solved a problem on the board. What error did Moira make and how can she correct it?
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Answer:

C

Step-by-step explanation:

What you do on one side of the equation, you do to the other. She added 10x on the right side and subtracted 10x on the left when she should have added 10x on both sides.

3 0
3 years ago
12.what is the probability that a boy and a girl chosen randsomly will be seniors?
zhenek [66]

\frac{\textbf{1}}{\textbf{20}}

Step-by-step explanation:

Probability=\frac{\text{number of favourable outcomes}}{\text{total number of outcomes}}

Probability for a randomly chosen girl to be senior=\frac{\text{number of senior girls}}{\text{total number of girls}}

Probability for a randomly chosen girl to be senior=\frac{7}{8+11+9+7}=\frac{7}{35}=\frac{1}{5}

Probability for a randomly chosen boy to be senior=\frac{\text{number of senior boys}}{\text{total number of boys}}

Probability for a randomly chosen girl to be senior=\frac{9}{10+7+10+9}=\frac{9}{36}=\frac{1}{4}

For two independent events,

Probability for both event 1 and event 2 to take place=\text{probability of event 1} \times \text{probability of event 2}

Since choosing boys and girls is independent,

Probability for both boy an girl chosen to be senior=\text{probability for boy to be senior}\times\text{probability for girl to be senior}

Probability for both boy and girl chosen to be senior=\frac{1}{5} \times \frac{1}{4} = \frac{1}{20}

So,required probability is \frac{1}{20}

3 0
3 years ago
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