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
lianna [129]
3 years ago
6

Suppose 300 randomly selected people are surveyed to determine whether or not they rent their home. Of the 300 surveyed, 60 repo

rted renting their home. Find the confidence interval for the population proportion with a 99% confidence level.
Mathematics
2 answers:
Vinil7 [7]3 years ago
8 0

Answer:  (0.143, 0.257)

Step-by-step explanation:

Given : Level of significance : 1-\alpha:0.99

Then , significance level : \alpha: 1-0.99=0.01

Since , sample size : n=300 .

Critical value : z_{\alpha/2}=2.576

Also, the proportion of people said that they were fans of the visiting team :-

\hat{p}=\dfrac{ 60}{300}\approx0.2

The confidence interval for population proportion is given by :-

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

0.2\pm(2.576)\sqrt{\dfrac{0.2(1-0.2)}{329}}\\\\\approx0.2\pm0.057\\\\=(0.2-0.057, 0.2+0.056=(0.143,\ 0.257)

Hence,   the confidence interval for the population proportion with a 99% confidence level= (0.143, 0.257)

HACTEHA [7]3 years ago
5 0

Answer:

.141, .259

p′=60300=0.2.

The standard error of the sampling distribution of the sample proportion is

σp′=p^(1−p′)n−−−−−−−−√=0.2(1−0.2)300−−−−−−−−−−√≈0.023.

With zα2=2.576 for a confidence level of 99%, the margin of error is thus

marginof error=(zα2)σp′≈(2.576)(0.023)≈0.059.

With point estimate p′=0.2=0.200 and a margin of error of 0.059, the confidence interval is

(0.200−0.059,0.200+0.059)(0.141,0.259).

We estimate with 99% confidence that the true population proportion of people who rent their home is between 0.141 and 0.259.

You might be interested in
Hi, I don't need this really fast, but I really don't understand how to do surface area and lateral surface area with rectangula
ipn [44]

Answer:

The surface area is the area that describes the material that will be used to cover a geometric solid. When we determine the surface areas of a geometric solid we take the sum of the area for each geometric form within the solid.

3 0
2 years ago
Read 2 more answers
Which of the following equations is a direct variation?<br> y=3X+2<br> y=5<br> y=2x<br> y=8x+6
Alex

direct \: varition \: means \: y \alpha x \\   it \: becomes \: y = kx
So y=2x is the only answer that fit y=kx, while k=2
3 0
3 years ago
ILL GIVE BRAINLY THIS IS THE WHILE QUESTION I FORGOT TO ADD THIS
Ne4ueva [31]
B. Situation A
C. Situation B

Explanation: Situation A has more students on the higher numbers.

Second Explanation: Situation B has numbers on the 70.
3 0
2 years ago
Estimate the quotient for 469.4÷62​
Alex Ar [27]

Answer:

469.4/62=7.57

Step-by-step explanation:

its the correct answer

8 0
3 years ago
Read 2 more answers
A map has a scale of 1 in. : 5 mi. The distance on the map between two cities is 11.5 inches. Find the actual distance between t
Vladimir [108]

Answer:

57.5 mi

Step-by-step explanation:

1 in = 5 mi

11.5 × 5 = 57.5 mi

6 0
3 years ago
Other questions:
  • Two points on a line are given by the ordered pairs (-3, 2) and (-3, -5). What type of line is this?
    14·1 answer
  • What is bigger 4/5 or 5/9
    5·2 answers
  • If the length of a figure (preimage) is 6cm, how long will the new figure (image) be if you triple the length? Explain how you f
    9·1 answer
  • Kirsten has 9 syrup containers from a local cafe. There are 6 milliliters of syrup per container.
    5·1 answer
  • How do you solve this problem (5x+10)=(2-7x)
    12·1 answer
  • PLZ HELP PLZ PLZ PLZ
    15·1 answer
  • Pls help LOTS OF POINTS!!!! HELP!!!!!!
    8·2 answers
  • Asnwer question in screenshot pls
    10·1 answer
  • Express in the form n : 1. Give n as a fully simplified fraction. 10 : 12
    13·1 answer
  • What number should come next in the sequence? 0.8, 0.35, -0.1, -0.55, ... FASTTTTT
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!