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
serg [7]
3 years ago
8

In a survey of 3203 adults, 1447 say they have started paying bills online in the last year. Construct a​ 99% confidence interva

l for the population proportion. Interpret the results. A​ 99% confidence interval for the population proportion is ??
Mathematics
1 answer:
Rashid [163]3 years ago
5 0

Answer:

(0.4291, 0.4743)

Step-by-step explanation:

Using the relation :

p ± Zcritical * Sqrt[(p(1-p)) / n]

P = x / n =. 1447 / 3203 = 0.4517

1 - p = 0.5483

Zcritical at 99% = 2.575

Sqrt[(p(1-p)) / n] = sqrt(0.4517(0.5483)) / 3203) = 0.008793

p ± Zcritical * 0.008793

Lower boundary = 0.4517 - (2.575 * 0.008793) = 0.4291

Upper boundary = 0.4517 + (2.575 * 0.008793) = 0.4743

(0.4291, 0.4743)

You might be interested in
Using the graph below, what would the y-value (range) be for an x-value (domain) of -3?
aniked [119]

Answer: The domain is the set of all possible x-values in the graph and the range is the set of all possible y-values in the graph. Incorrect. To determine the range, identify the set of all possible y-values in the graph. The minimum y-value on this graph is 4.

any more help just ask:)

6 0
3 years ago
A plane can fly 275 miles downwind in the same amount of time as it can travel 185 miles upwind. Find the velocity of the wind i
Tcecarenko [31]
<span>(230 + w) x ( t ) = ( 275 )
(230 - w) x ( t ) = ( 185) 

t = 275 / (230 + w)
t = 185 / (230 - w) 

275 / (230 + w) = 185 / (230 - w)
275(230 - w) = 185(230 + w)
63250 - 275w = 42550 + 185w
20700 = 460w
w = 45mph

</span>
7 0
4 years ago
What is the slope of a line parallel to the line whose equation is 2x−3y=6 ?
Kisachek [45]
2x-3y=6
3y=2x-6
y=2/3x-2
Slope = 2/3

Therefore B
6 0
4 years ago
Read 2 more answers
Which counterexample shows that the conjecture All mammals are monkeys is false
erica [24]

Answer:

A mouse is a mammal, but it us not a monkey.

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
Can someone pls pls help me?
Kaylis [27]

Answer:

3mm²

Step-by-step explanation:

Use the triangle area formula 1/2×base×height

\frac{1}{2}  \times 2 \times 3 \\  = 3

5 0
3 years ago
Read 2 more answers
Other questions:
  • How do you plot 2x + 3y = 12 on a graph?
    6·1 answer
  • Find the simple interest if $5000 is borrowed for 2 years at 12% rate of interest
    14·1 answer
  • Which classification correctly describes the following number?
    15·1 answer
  • What is the value of 1-18+25 if you subtract then add?
    6·2 answers
  • Jeff worked 4 2/3 hours in the morning and 3 3/4 hours in the afternoon. How many total hours did he work today?
    7·2 answers
  • In this number tree, the integers greater than or equal to 0 are written out in increasing order, with the top row containing on
    7·1 answer
  • 8.
    7·1 answer
  • Type the correct answer in the box
    11·1 answer
  • Find the missing factor.______ x 7 = 2,800<br> A) 4<br> B) 40<br> C) 400<br> D) 4,000
    12·2 answers
  • please help! functions and relations. f(x)= square root of x-4. find the inverse of f(x) and it’s domain.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!