1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
torisob [31]
3 years ago
8

A planning board in Elm County is interested in estimating the proportion of its residents that are in favor of offering incenti

ves to high-tech industries to build plants in that county. A random sample of Elm County residents was selected. All of the selected residents were asked, "Are you in favor of offering incentives to high-tech industries to build plants in your county?" A 95 percent confidence interval for the proportion of residents in favor of offering incentives was calculated to be 0.54 ± 0.05. Which of the following statements is correct? (As an added challenge: Can you find the mistakes in the incorrect statements?)
a) At the 95% confidence level, the estimate of 0.54 is within 0.05 of the true proportion of county residents in favor of offering incentives to high-tech industries to build plants in the county.
b) At the 95% confidence level, the majority of area residents are in favor of offering incentives to high-tech industries to build plants in the county.
c) In repeated sampling, 95% of the sample proportions will fall in the interval (0.49, 0.59).
d) In repeated sampling, the true proportion of county residents in favor of offering incentives to high-tech industries to build plants in the county will fall in the interval (0.49, 0.59).
e) In repeated sampling, 95% of the time the true proportion of county residents in favor of offering incentives to high-tech industries to build plants in the county will be equal to 0.54.
Mathematics
1 answer:
Viktor [21]3 years ago
6 0

Answer:

Given confidence interval is 0.54+or-0.05

0.54-0.05,0.54+0.05 =

(0.49,0.59)

In repeated sampling,the true proportion of country residents in favor of offering incentives to high-tech industries to build plants in the country will fall in the interval (0.49,0.59)

You might be interested in
The area of a square is 144cm2.what is the measurement of each side​
Dmitry [639]

The area of a square is 144 cm^2. The measurement of each side​ is 12 cm

<u>Solution:</u>

Given, The area of a square is 144 cm^2

We have to find that what is the measurement of each side.

Now, we know that, area of a square = product of side value with another side value.

Let the side value of given square be "s"

Then, <em>Area of square is given as:</em>

\begin{array}{l}{\text {area of square}=s \times s} \\\\ {\text {Area of square}=s^{2}} \\\\ {144=s^{2}} \\\\ {s=\sqrt{144}} \\\\ {s=\sqrt{12^{2}}}\end{array}

On cancelling square root and square on right side,we get

s = 12

Hence, the side value of the square is 12 cm.

8 0
3 years ago
Consider the line y =
posledela

Answer:

y= what? Whats the first equation

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve for x.<br> 75°<br> 11x-2
DaniilM [7]

Answer:

x=7

Step-by-step explanation:

6 0
2 years ago
Guys Pls Help ASAP! Will Give Brainliesttt. <br><br> Thxx
Allisa [31]

Answer:

23. x= -2/5 x= -5

24. x= 3/4 x= -1/6

25. x= 7/3. x= -5/4

26. x= 3 x= -2/3

27. x= 1. x= -2/7

28. x= 9/4. x= -1/3

29. x= 2/5 x= 1/3

30. x= 2/3 x= 1/2

6 0
3 years ago
The parabola opens upward has x = 2 as an axis of symmetry and contains the non -vertex points (1, 9) and (4, 27) write the equa
Sedaia [141]

Answer:

<h3>               f(x) = 6(x - 2)² + 3</h3>

Step-by-step explanation:

f(x) = a(x - h)² + k    - vertex form of the equation of the parabola with vertex (h, k)

"the parabola opens upward" means:  a>0

"the parabola has x = 2 as an axis of symmetry" means:  h = 2

so f(x) = a(x - 2)² + k

"the parabola contains the point (1, 9)" means:

9 = a(1 - 2)² + k

9 = a(-1)² + k

9 = a + k

k = 9 - a

"the parabola contains the point (4, 27)" means:

27 = a(4 - 2)² + k

so:

27 = a(2)² + 9 - a

27 = 4a + 9 - a

3a = 18

a = 6

and  k = 9 - 6 = 3

Therefore the vertex form for this parabola is:

                                     <u> f(x) = 6(x - 2)² + 3</u>

4 0
3 years ago
Other questions:
  • Why is it important for pregnant women to include leafy green vegetables and oranges in their diet
    8·2 answers
  • Barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of drinks s
    7·1 answer
  • Please help it’s urgent !!
    10·1 answer
  • Assuming that the spinner is fair, compute the theoretical probability of landing on black
    10·1 answer
  • Consider a set of 7500 scores on a national test whose score is known to be distributed normally with a mean of 510 and a standa
    9·1 answer
  • -4+9 <br> 7+(-8)<br> -2+1<br> 6+(-9)<br> 5+(-7)<br> 9+(-5)
    7·1 answer
  • Find the distance between (-2,5) and (4,3).
    14·1 answer
  • Give the coordinates of each transformation of (2, –3)
    11·2 answers
  • Answer please if you can:))
    12·1 answer
  • Three times the sum of a number squared and 4​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!