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
svet-max [94.6K]
3 years ago
12

In one city, 75 percent of residents report that they regularly recycle. In a second city, 90 percent of residents report that t

hey regularly recycle. Simple random samples of 75 residents are selected from each city. Which of the following statements is correct about the approximate normality of the sampling distribution of the difference in sample proportions of residents who report that they regularly recycle?
a. The sampling distribution is approximately normal because both sample sizes are large enough.
b. The sampling distribution is not approximately normal because although the sample size for the first city is large enough, the sample size for the second city is not large enough.
c. The sampling distribution is not approximately normal because although the sample size for the second city is large enough, the sample size for the first city is not large enough.
d. The sampling distribution is not approximately normal because neither sample size is large enough.
e. There is not enough information provided to determine whether the sampling distribution is approximately normal.
Mathematics
1 answer:
Paraphin [41]3 years ago
6 0

can you show me a picture then maybe i can help you

You might be interested in
Judy is pulling on a trunk with a 12-N force. Ike pulls at right angles to Judy. With how much force must Ike pull to make the r
Ratling [72]
To understand the problem, let's first draw a free body diagram of the forces exerted by Judy and Ike on the truck. (Refer to the left side of the attachment).

To solve for the resultant, we just use the tip-to-tail method. This is illustrated on the right side of the attachment.

We can see that the tip-to-tail method forms a right triangle thus we can just apply the Pythagorean theorem in solving for Ike's force.

20^{2} = 12^{2} + F^{2}
400 = 144 + F^{2}
256 = F^{2}
F = 16.0

ANSWER: Ike must pull the truck with a force of 16.0 N.

8 0
3 years ago
There are 24 hours in a day and scientists tell us that we should sleep for 3/8 of the day how much time should we spend sleepin
Katyanochek1 [597]

Answer:

9

Step-by-step explanation:

3/8 × 24

= 3 × 3

= 9

9 Hours

3 0
3 years ago
In an isosceles triangle two sides are equal. The third side is two less than twice the length of the two equal sides. The perim
pogonyaev

Answer:

The equal sides' length = 10

Third side length = 18

Step-by-step explanation:

Let the two equal sides' length be "x"

Let the third side length be "y"

Third side (y) is 2 LESS THAN TWICE the equal side, so we can write:

y = 2x - 2

The perimeter is 38. The perimeters is the sum of all three sides. So we can write:

x + x + y = 38

Replacing y with 2nd equation, we have:

x + x + (2x - 2) = 38

Now, we can solve this for x first:

x + x + (2x - 2) = 38\\x+x+2x-2=38\\4x=38+2\\4x=40\\x=10

Now, y is:

y = 2x - 2

y = 2(10) - 2

y = 20 - 2

y = 18

The equal sides' length = 10

Third side length = 18

3 0
3 years ago
c) Solve the equation you wrote in part b to find how many hours you would have to work to pay for the first year of video strea
marta [7]
Parents will allow you to stream videos on your tablet if you agree to prepay the monthly bill. If the initial charge to set up an account is $50 and the monthly fee is $18, create a table that would represent the cost each month for the first year. 
Every Month $68 $18 $18 $18 $18 $18 $18 $18 $18 $18 $18 $18
<span>Total For Year$68 $86 $104 $122 $140 $158 $176 $194 $212 $230 $248 $266 </span>

4 0
3 years ago
1. Is triangle P’Q’R larger or smaller than triangle PQR? Explain how you know
Salsk061 [2.6K]

Answer:

The length of the line is PQ as this line is parallel to the x - axis. So, the length of the line is the summation of 10 from second quadrant and 20 from first quadrant. So, the sum is 30. Hence the length of the line is 30 units.

Step-by-step explanation:

The length of a line segment can be measured by measuring the distance between its two endpoints. It is the path between the two points with a definite length that can be measured. Explanation: On a graph, the length of a line segment can be found by using the distance formula between its endpoints.

7 0
2 years ago
Other questions:
  • What is the measure of angle C? 38° 76 degrees 90° 152°
    10·1 answer
  • Help please! Math Nation Section 6 Test Yourself Practice Tool.
    10·2 answers
  • Math help mee plzzzzzz
    7·1 answer
  • Which sign makes the statement true?
    13·1 answer
  • X=<br><br> a) 27<br> b) 54<br> c) 61
    9·2 answers
  • In the previous question you found 5% of £84 . Now use your answer to<br> increase £84 by 5%. *
    10·1 answer
  • Plz help ill give brainleist
    9·1 answer
  • I was confuse on number 5, 6, 7, 8.
    10·2 answers
  • Two groups are going on a trip to the theater. The first group has 30 students in for adult chaperones. The second group has 25
    8·1 answer
  • (2,2) (2,-4) (-5,-4)(-5,2)
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!