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
lora16 [44]
3 years ago
6

Please help! Will give BRAINLIEST!

Mathematics
1 answer:
ikadub [295]3 years ago
4 0

Answer:

Hold on I am doing it.

Step-by-step explanation:

You might be interested in
Simplify: 7!<br> 5,040<br> 40,320<br> 7<br> 720
Arturiano [62]
5040, I looked up the factorial of 7
8 0
3 years ago
Read 2 more answers
An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic. Step 2 of 2 : S
ziro4ka [17]

Answer:

The 85% onfidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars is (0.151, 0.205).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

Sample of 421 new car buyers, 75 preferred foreign cars. So n = 421, \pi = \frac{75}{421} = 0.178

85% confidence level

So \alpha = 0.15, z is the value of Z that has a pvalue of 1 - \frac{0.15}{2} = 0.925, so Z = 1.44.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.178 - 1.44\sqrt{\frac{0.178*0.822}{421}} = 0.151

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.178 + 1.44\sqrt{\frac{0.178*0.822}{421}} = 0.205

The 85% onfidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars is (0.151, 0.205).

8 0
2 years ago
Finding the Area of a Triangle<br> Calculate the area of the triangle:<br> A=
aleksley [76]

what what what what what what what what what

3 0
2 years ago
Read 2 more answers
Solve for x in the parallelogram.<br><br><br><br> The solution is x= <br> units.
natka813 [3]

\textit{area of a parallelogram}\\\\ A=bh~~ \begin{cases} b=base\\ h=height\\[-0.5em] \hrulefill\\ b=13\\ A=104\\ h=x \end{cases}\implies 104=(13)(x)\implies \cfrac{104}{13}=x\implies 8=x

5 0
2 years ago
Simplify the expression:<br> 2f+-1+-8+-4+-3f^2
mamaluj [8]
2f+-1+-8+-4+-3f^2 = 2f-1 -8-4-3f^2 \\  \\ =\boxed{-3f^2+2f-13}
5 0
3 years ago
Other questions:
  • What is your monthly if you make 13,500 a year
    13·2 answers
  • Bob's bill for dinner at surefire steak house was $45. In addition he piad 5°\° of the bill in tax and he left a tip for 15°\° o
    15·1 answer
  • Nathan drove 275.2 miles on 8 gallons of gas. Divide 275.2 by 8 to find the average number of miles per gallon for Nathan's car.
    8·2 answers
  • The time taken to prepare the envelopes to mail a weekly report to all executives in a company has a normal distribution, with a
    5·1 answer
  • X^2 - 2x - 63 = 0<br> Complete the square
    5·1 answer
  • Consider a project that has an expected completion time of 60 weeks and a standard deviation of five weeks. What is the probabil
    10·1 answer
  • Find the solutions to 9x²-52x=0 check all that apply
    7·1 answer
  • The population of cats in a shelter decreased from 100 to 55. What is the percentage decrease of the shelter's cat population?
    11·1 answer
  • What is the value of the function when x = 2?
    14·2 answers
  • What is the volume of a sphere with a radius of 5.9 in, rounded to the nearest tenth of a cubic inch?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!