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
kap26 [50]
3 years ago
10

Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the dif

ference between proportions of men and women who own smartphones. Assume that you want 99​% confidence that your error is no more than 0.025.
The sample should include ___ men and __ women.
(type whole numbers.)

- Thank you <3
Mathematics
1 answer:
rodikova [14]3 years ago
4 0

Answer:

60men 40 women.... but I ain't sure

You might be interested in
Find the total area for the regular pyramid.
hram777 [196]

Answer:

  • Option B

Step-by-step explanation:

Given is the hexagonal pyramid.

We know the radius of the base is same as its side.

<u>Find the base area:</u>

  • A = 3√3/2a²
  • A = 3√3/2*6² = 54√3

<u>Given the height and radius, find the side of the lateral triangular faces:</u>

  • \sqrt{8^2+6^2} =\sqrt{100} =10

Each of 6 triangles have sides 10, 10 and 6 units.

<u>Find the area using heron's formula:</u>

  • s = P/2 = (10*2 + 6)/2 = 13
  • s - a = s - b = 13 - 10 = 3
  • s - c = 13 - 6 = 7
  • A = \sqrt{s(s-a)(s-b)(s-c)} =\sqrt{13*3*3*7} =3\sqrt{91}

<u>Total surface area:</u>

  • S = 6*3\sqrt{91}+54\sqrt{3}  =18\sqrt{91}+54\sqrt{3}

Correct choice is B

3 0
2 years ago
What is the Measure of angle Y
Lisa [10]

Answer:

As the measures of the interior angles of all triangles add to equal 180 degrees

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Helppppppppppppppppp
Anna [14]
If the slope is given then all is left is y-intercept which is equal to -3 which is also given in the question from the point (-4,-3), then your equation would be complete if you have these two so I think the answer is y=3/4x-3 and I’m really sorry if my answer is wrong but i tried my best and good luck!!
8 0
3 years ago
How many year and months did it take to build blackpool tower england
jeka57 [31]
<span>The Blackpool Tower took 3 years to build using about 2,500 tons of steel and 5,000,000 bricks. The tower was officially opened to the public in 1894. The architects of the project, Messers Maxwell and Tuke, died before the building was completed.</span>
5 0
3 years ago
Read 2 more answers
Lakshmi donates 20% of her income to charity. What fraction of her income does Lakshmi donate to charity?​
tigry1 [53]

Answer:1/5

Step-by-step explanation:

20/100=1/5

5 0
3 years ago
Other questions:
  • What number could be added to 0.40mL for the level of precision to be 0.01 mL
    9·2 answers
  • Factor the difference of two perfect squares using the X method. What are the two binomial factors for x2 – 25?
    16·2 answers
  • How do i find the factors of 15?
    13·1 answer
  • The width of the statue of libertys head from ear to ear is 10 ft. The height of the statues head from chin to cranium is 17 ft
    15·1 answer
  • On January 3, the high temperature in Anchorage, Alaska, was −24∘F. That same day, the high temperature in Minneapolis, Minnesot
    12·1 answer
  • What values of x and y satisfy x − 3y = 4 and 2x + y = 7 simultaneously?
    8·1 answer
  • What is 3 and one half times 2 and one third.
    9·1 answer
  • Kesha bought a new pair of skis for $450. She made a payment of $120 and got a student discount of $40. Her mother paid 1/2 of t
    6·2 answers
  • Andrew's team won 35% of their games. If his team won 7 games how many did they play?
    8·2 answers
  • Which statement BEST explains why the slope of each line segment formed by the hypotenuse of each triangle is the same?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!