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
svp [43]
3 years ago
15

Suppose a sample of 80 with a sample proportion of 0.58 is taken from a population. Which of the following is the approximate 95

% confidence interval for the population parameter?
Mathematics
2 answers:
elena55 [62]3 years ago
6 0

Answer:

The 95% confidence interval for the population parameter is (0.4718, 0.6882).

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 interval 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:

n = 80, p = 0.58

95% confidence interval

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.58 - 1.96\sqrt{\frac{0.58*0.42}{80}} = 0.4718

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.58 + 1.96\sqrt{\frac{0.58*0.42}{80}} = 0.6882

The 95% confidence interval for the population parameter is (0.4718, 0.6882).

Sveta_85 [38]3 years ago
3 0

Answer:

Correct answer is 0.470 0.690.  

Step-by-step explanation:

Just got it right on apex.

You might be interested in
Change 3/2 to a mixed number
Mariulka [41]
Okay first you have to divide 
2 goes into 3
3/2
2 fits into 3 once
1 and the left over is 1 so
1 1/2

4 0
3 years ago
1+1I need help and fast i've been trying to solve this one for 30 minutes now.
Liula [17]

Answer:

2

Step-by-step explanation:

somebody has to answer eventually lol

6 0
2 years ago
(9x +1) 45 = (x+5) 14
ipn [44]
Use the website math papa it’ll give you the answers for your problem I promise!! Have a good day :)
5 0
2 years ago
Pls help ASAP ! <br><br><br> Pic is down below!
Bond [772]

Answer:

36 roses

Step-by-step explanation:

5 0
3 years ago
In a recent flu epidemic, the number of flu cases increased by 40% each week. There were 3,000 flu cases during the first week o
Alborosie

Answer:

2880

Step-by-step explanation:

The total number of people affected by flu during  the 2nd and 3rd week of January,  1200 + 1680  = 2880        

5 0
2 years ago
Other questions:
  • Subtract by adding the opposite. <br> 19-23=<br> -48-(80)=<br> -17-(-20)=
    6·1 answer
  • Helppppppppppppppppppppppppp
    8·1 answer
  • Mandi already has a practice ball. She is buying the light jacket, but not the lined one. She needs to buy all of the other item
    9·1 answer
  • George's page contains twice as many typed words as Bill's page and Bill's page contains 50 fewer words than Charlie's page. If
    8·2 answers
  • Calculate the distance between (5, 3) and (-1, 6). Round your answer to the nearest tenth if necessary. (One place after the dec
    9·1 answer
  • If T(n)=2-7n, what is the first term
    10·1 answer
  • 2. Which statement is true?
    12·1 answer
  • I don’t get it. If u can actually answer it
    8·1 answer
  • Suppose a student typically spends 5/2 hours each week doing research on the Internet. How much research time does a student spe
    10·2 answers
  • Find the total surface area.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!