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
muminat
3 years ago
10

How to answer this question

Mathematics
1 answer:
svlad2 [7]3 years ago
7 0

Answer:

(0.3049 ; 0.3751)

Step-by-step explanation:

The confidence interval for proportion can be obtained using the relation :

Phat ± Zcritical * [√phat(1-phat) / n]

phat = x / n

Sample size, n = 700

x = 238

phat = 238/700 = 0.34

Zcritical at 95% = 1.96

C.I = 0.34 ± 1.96 * [√0.34(1-0.34) / 700]

C.I = 0.34 ± 1.96 * 0.0179045

C. I = 0.34 ± 0.0350928

Lower boundary = 0.34 - 0.0350928 = 0.3049

Upper boundary = 0.34 + 0.0350928 = 0.37509

(0.3049 ; 0.3751)

You might be interested in
The value of x is a distance of 4 units from 2 what are the possible values of x
Anna007 [38]
X could be 6 or -2
You start at 2 on a number line and move 4 to the right and 4 to the left.
7 0
3 years ago
Michal yard is 320 acres if he mowed 2/5 of his yard on friday how many acres does he have left to mow on saturday P.S you get 2
77julia77 [94]
I92 because that is how many archers he has left for the next day.
5 0
3 years ago
Read 2 more answers
. You want to buy a new pair of shoes. You have a coupon for $15 off. Once you get to the store, you realize your shoes are on s
Alex_Xolod [135]

Answer:

I would use the sale price.

Step-by-step explanation:

20% of 150 is 30. So, you get $30 off if you use the sale price rather then the $15 coupon.

5 0
3 years ago
Help math solve answer this please will give brainliest
bazaltina [42]
Y=x times h is the answer

3 0
3 years ago
Please help me! I have no idea how to do this
elena-s [515]

The best way to do this is to make up values for the sides.

Say the lengths of square B's sides are each 4 cm. That means A's sides are 2 cm.

So, the area of square B is 4^2 = 16 cm^2, and A's area is 4 cm^2. We can see the shaded area is half of A, so it's 2 cm^2.

What percent of 16 is 2?

2 / 16 * 100 = 12.5%

5 0
3 years ago
Other questions:
  • Ivan runs 7 miles in 60 minutes. at the same rate how many miles would he run in 24 minutes
    10·1 answer
  • I need to know the answer and how to solve it
    10·1 answer
  • What is the area of a 4:3 aspect ratio 32 inch tv
    8·1 answer
  • The circumference of a circle is 15 m. Find the area. Use 3.14 for pie
    5·2 answers
  • Helppppp<br> y=x-7<br> y=x+7
    10·1 answer
  • 4) Solve Ax + By = C, for y
    10·2 answers
  • The diagonal of a square is 2.42 cm. Find<br>the area of the square.​
    8·1 answer
  • What is the answer to this? Plz explain why...HELPPPPP
    11·2 answers
  • Estimate to the nearest whole number. 35.87 + 103.89​
    15·1 answer
  • Help pleaseeeeeeeeeeeeeeeeeeeeee
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!