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
koban [17]
3 years ago
13

Consider random samples of size 80 drawn from population A with proportion 0.48 and random samples of size 66 drawn from populat

ion B with proportion 0.13 . (a) Find the standard error of the distribution of differences in sample proportions, . Round your answer for the standard error to three decimal places. standard error
Mathematics
1 answer:
gogolik [260]3 years ago
5 0

Answer:

Standard error = 0.070

Step-by-step explanation:

Formula for the standard error of the distribution of differences in sample proportions is;

σ_(A - B) = √((p_a^(1 - p_a^)/n_a) + (p_b^(1 - p_b^)/n_b))

We are given;

p_a^ = 0.48

n_a = 80

p_b^ = 0.13

n_b = 66

Thus;

σ_(A - B) = √((0.48(1 - 0.48)/80) + (0.14(1 - 0.13)/66))

σ_(A - B) = √0.00496545455

σ_(A - B) = 0.070

You might be interested in
Complete the following table using the equation: y = 2 x squared
Sergeeva-Olga [200]

Answer:

D

Step-by-step explanation:

Other person was wrong

4 0
3 years ago
Read 2 more answers
Write a real-world situation that could be modeled by the equation 24/y=3. Then solve the problem. Anyone plz help me.
Bogdan [553]
Bobby has 24 pizza slices
he divided them among his friends and each friend got 3 pieces
how many friends did he have

so
24 divided by number of friends=3
24/y=3
multiply both sides by y
24y/y=3y
24 times y/y=3y
24 times 1=3y
24=3y
divide both sides by 3
24/3=3y/3
8=3/3y
8=1y

y=8
8 friends
8 0
3 years ago
Helppppllplllppppppplllleldldldldlldldffbfbdbrjdj
timama [110]

Answer:

Bleeep...... Hello.....

8 0
4 years ago
Please help look at picture
Sergio [31]

Answer:

670.21ft^3

Step-by-step explanation:

Volume of a cylinder=pi*r^2*h

Radius=8/2=4

Height=12

Volume=603.19

Volume of a cone=pi*r^2*(h/3)

radius=8/2=4

Hight=16-12=4

Volume=67.02

603.19+67.02=670.21ft^3

5 0
3 years ago
What was Weston’s error?
Vinvika [58]

Check the picture below.

3 0
4 years ago
Read 2 more answers
Other questions:
  • Gcf of the terms of the polynomial 18x^4-27x^3-36x^2
    8·1 answer
  • Find the coordinates of the midpoint of a segment with the given endpoints W(-12, -7), T(-8, -4)
    5·2 answers
  • The area of a rectangular rug is given by the trinomial r^2 – 9r – 22. What are the possible dimensions of the rug? Use factorin
    15·1 answer
  • It’s the top question
    10·2 answers
  • Five times the sum of a number and 6 is 48
    10·1 answer
  • Luke earns $11.00 per hour. He works 32 1/2<br> hours per week. What is his weekly wage
    13·2 answers
  • What is the equation of the line that passes through the point (5,4) and is perpendicular to the line whose equation is 2x + y =
    8·1 answer
  • Pls help me on prodigy plssssssssssssssssssssssssssssssssssss
    14·2 answers
  • Choose all the statements Suki could use to reason and solve the equation.
    6·2 answers
  • When copying a segment and bisecting a segment, which step is the same?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!