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
Elena L [17]
3 years ago
12

The Pythagoreans changed mathematics from a science into a set of problem-solving techniques. True or false

Mathematics
1 answer:
Studentka2010 [4]3 years ago
8 0
The correct answer is true
You might be interested in
An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by th
monitta

Answer:

a) n =1623

b) ME=2.0538\sqrt{\frac{0.21 (1-0.21)}{1623}}=0.0208    

Step-by-step explanation:

1) Notation and definitions

n random sample taken

\hat p=0.19 estimated proportion of customers are not satisfied with the service provided by the local dealer

Confidence =0.96 or 96%

Me= 0.02 represent the margin of error

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Part a

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 96% of confidence, our significance level would be given by \alpha=1-0.96=0.04 and \alpha/2 =0.02. And the critical value would be given by:

z_{\alpha/2}=-2.0538, z_{1-\alpha/2}=2.0538

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.02 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

And replacing into equation (b) the values from part a we got:

n=\frac{0.19(1-0.19)}{(\frac{0.02}{2.0538})^2}=1622.912  

And rounded up we have that n=1623

Part b

The margin of error is given by:

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    

So then if w replace the value of n obtained from part a we got:

ME=2.0538\sqrt{\frac{0.21 (1-0.21)}{1623}}=0.0208    

3 0
3 years ago
PLEASE HELP NEED ASAP
babymother [125]
What the formula?
::::::::::::::::::::::::::::::1
7 0
3 years ago
Smallest to largest. Here are four decimal numbers: 0.9, 0.5, 0.8, 0.1
Pani-rosa [81]

Answer:

0.1,0.5,0.8,0.9

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
What is the answer to 8×3÷6×10÷20=​
sleet_krkn [62]
The answer to your question is 2
4 0
3 years ago
Read 2 more answers
What is value of this expression below when y=3<br> 8y^2-y-8
serg [7]
Plug in 3 for y
8(3)^2-(3)-8
8(9)-3-8
72-3-8 = 61
8 0
3 years ago
Read 2 more answers
Other questions:
  • Ok so i need the work and answer for this problem is due asap click the picture.
    7·2 answers
  • Describe the proportion method for solving a percentage problem:
    15·1 answer
  • Find an equation of the line. Write the equation in function notation. Through (6,-1); perpendicular to 9y=x-18
    9·1 answer
  • How many times can you take away 12 from 324
    8·2 answers
  • Explain to Jimmy how estimating first can help him determine if his answer is reasonable his answer was 384 is at a reasonable a
    6·1 answer
  • PLEASE HELP
    9·1 answer
  • PLEASE ANSWER ASAP!!!
    9·2 answers
  • Efectúa la siguientes operaciones 3254+535​
    13·1 answer
  • According to the US Bureau of Labor Statistics publication News, self-employed persons with home-based businesses work a mean of
    6·1 answer
  • 1.How many combinations are possible from the letters HOLIDAY if the letters are taken?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!