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
Vlad [161]
3 years ago
8

L (3 x 6) (5 x 2 4-7

Mathematics
1 answer:
Verdich [7]3 years ago
8 0
The answer would be 4
You might be interested in
f the dean wanted to estimate the proportion of all students receiving financial aid to within 3% with 99% reliability, how many
Oksanka [162]

Answer:

n=1849

Step-by-step explanation:

Previous concepts

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}})

Solution to the problem

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 99% of confidence, our significance level would be given by \alpha=1-0.99=0.01 and \alpha/2 =0.005. And the critical value would be given by:

z_{\alpha/2}=-2.58, z_{1-\alpha/2}=2.58

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 0.03 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)  

Assuming that the proportion is estimated \hat p =0.5. And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.03}{2.58})^2}=1849  

And rounded up we have that n=1849

7 0
3 years ago
A child gets 1 egg on their
diamong [38]

Answer:91 years

Step-by-step explanation:

4 0
3 years ago
Sole the given inequality and graph it on the number line. -2x - 5 < 3​
Anon25 [30]

Answer:

your answer would be X>-4

6 0
3 years ago
Please put these in the correct order
Ivahew [28]
The first tile goes to 4p3q2

The second tile goes to 8pq5

The third tile goes to 4p2q5

The fourth tile goes to 8p2q
5 0
3 years ago
Please help me solve
arsen [322]

Answer:

18 square centimeters

Step-by-step explanation:

Notice that if e is the midpoint of the side CB, and angle \angle x = 45^o, then this rectangle is in fact two squares of side 3 cm put together. therefore, side CD has a length of 6 cm, and as a result, the area of the figure is given by the product base times height = 6 x 3 = 18 cm^2

4 0
3 years ago
Read 2 more answers
Other questions:
  • If ABCD is a parallelogram, what is the value of x?
    7·2 answers
  • An astronaut is returning to earth in a spacecraft. If the spacecraft is descending at a rate of 13.81 kilometres per minute,wha
    5·2 answers
  • What type of transformation takes the graph of f(x)=|x| to the graph of g(x)=−3+|x|? A horizontal translation of 3 units left
    8·2 answers
  • F(x)=(x+0.25x)(50-x)
    11·1 answer
  • What is the value of y in the equation 4(y-6) = - 4 ? REMEMBER TO DISTRIBUTE! *
    13·2 answers
  • Khan Academy Order Rational Numbers<br><br> Please help, I will mark brainliest.
    15·1 answer
  • What is the slope of the line that<br> passes through these two points?<br> (1, -2)<br> (3, 4)
    12·1 answer
  • Please help me due today....
    7·2 answers
  • Round 21254 to the nearest thousand
    7·2 answers
  • Find the slope of the line that contains the points (-8, -2) and (-17, 4).
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!