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
Mrac [35]
3 years ago
9

In politics, marketing, etc. We often want to estimate a percentage or proportion p. One calculation in statistical polling is t

he margin of error - the largest (reasonble) error that the poll could have. For example, a poll result of 72% with a margin of error of 4% indicates that p is most likely to be between 68% and 76% (72% minus 4% to 72% plus 4%). In a (made-up) poll, the proportion of people who like dark chocolate more than milk chocolate was 32% with a margin of error of 2.2%. Describe the conclusion about p using an absolute value inequality.
Mathematics
1 answer:
inessss [21]3 years ago
6 0

Answer: |p-72% |≤ 4%

Step-by-step explanation:

Let p be the population proportion.

The absolute inequality about p using an absolute value inequality.:

|p-\hat{p}| \leq E , where E = margin of error, \hat{p} = sample proportion

Given:  A poll result of 72% with a margin of error of 4% indicates that p is most likely to be between 68% and 76% .

|p-72% |≤ 4%

⇒    72% - 4% ≤ p ≤ 72% +4%

⇒  68%  ≤ p ≤  76%.

i.e. p is most likely to be between 68% and 76% (.

You might be interested in
Line m has a slope of 8/5. line n is perpendicular to line m. what is the slope of line n?
yulyashka [42]

m_{1}m_{2} =  - 1

\frac{8}{5} \times  m_{2} =  - 1

m_{2} =  \frac{5}{8} \times - 1

\boxed{  m_{2} =  \frac{ - 5}{8} }

4 0
2 years ago
Write the number in standard notation. 4.16 *10^-5 0.00000416 0.0000416 0.000416 –208
zalisa [80]
4.16\cdot10^{-5}\\\\move\ the\ decimal\ 5\ place\ left\\\\4.16\cdot10^{-5}=0.0000416
4 0
3 years ago
Solve the system of equations below by graphing both equations with a
jek_recluse [69]
Your answer would be c
6 0
3 years ago
On a<br> paper, graph y &lt; -2x Then determine which answer matches<br> the graph you drew.
Olenka [21]

Answer:

theres the graph

Step-by-step explanation:

3 0
3 years ago
Evaluate the following expression:<br> 30 = 5(8 – 6 + 1) - (2^2 - 3)^3
grin007 [14]

Answer:

30=15

Step-by-step explanation:

30=40-30+6-4-27

30=10+2-27

40=12-27

30=-15

7 0
3 years ago
Other questions:
  • A dress that normally costs $69.50 is on sale for 40% off. What is the sale price of the dress?
    14·1 answer
  • Write an equation of the line given the slope and y-intercept below.<br> m= 5 b=4
    11·2 answers
  • What is 3(w+4)= -2(1.5-6).
    5·1 answer
  • Evaluate the infinite geometric series 0.79 + 0.079 + 0.0079 + 0.00079 + 0.000079. Express your answer as a fraction with intege
    6·1 answer
  • A triangle is placed in a semicircle with a radius of 6 yd, as shown below. Find the area of the shaded region.
    15·1 answer
  • What transformation did Ben perform to create P'Q'R'S'? (6 points)
    15·2 answers
  • Find the volume of the given figure.
    12·1 answer
  • Is −5+(2.5+3 1/5)⋅4.25 equivalent to −5+(5.7)⋅4.25 yes or no?
    7·1 answer
  • Is π11 a real number?​
    12·1 answer
  • Simplify x = cos[2 arcsin(3/5)].<br><br> -7/25<br> 7/25<br> 4/5
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!