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
A customer will be charged extra if the weight of their suitcase is above 48 pounds.
amm1812

Answer:

w>48 pounds

Step-by-step explanation:

The customer will be charged extra if the weight of their suitcase is above 48 pounds.

Let the weight of the suitcase = w (in pounds)

Therefore, w above (greater than) 48 pounds is written mathematically as:

w>48 pounds

This is the inequality that represents w, the weight of the suitcase in pounds, that will have an extra charge.

6 0
3 years ago
True or false<br><br> log(A+B)=logA+logB
fomenos
True because log times A and B will also be logA and Log B
7 0
3 years ago
Explain how to do distributive property. Use an example.
klasskru [66]

Answer:

so we have 4(3x + 10)

then we are going to take the 4 and distribute it into our problem

so: 4(times)3x and then 4( times)10

to get :

<h2>12x+40</h2>

Step-by-step explanation:

3 0
3 years ago
Consider the equation 4+2(5x-8) = ax +b.
vlada-n [284]

Answer:

a = 10, b = -12

Step-by-step explanation:

4+2(5x-8) = ax +b

4 + 10x - 16 = ax + b

10x - 12 = ax + b

Infinitely many solutions when:

a = 10

b = -12

5 0
3 years ago
Read 2 more answers
8. A square has side length 6 inches. A parallelogram has a base of 6 inches,
wlad13 [49]

Answer:

The height is 6 inches.

Step-by-step explanation:

Area of the square = length of a side squared.

This square has area 6^2 = 36 in^2.

Area of the parallelogram =  base * height

= 6h.

As the areas are equal:

6h = 36

h = 36/6 = 6 inches.

6 0
3 years ago
Other questions:
  • At time, t=0, Billy puts 625 into an account paying 6% simple interest. At the end of year 2, George puts 400 into an account pa
    8·1 answer
  • Problem Set
    7·1 answer
  • A school is planning an event to raise $1,000 for charity. The cost of organizing the event is $200. The tickets are priced at $
    5·1 answer
  • Jeff wanted to buy TV priced at $700. There are 20% OFF sale going on during President's week. How much would Jeff pay if he buy
    12·1 answer
  • PLEASE HELP ME!!!!I NEED HELP
    7·1 answer
  • What is the value of cos 120 degree
    5·1 answer
  • AKAJAXOSPAPXODAOAPA HELP
    9·1 answer
  • What is the scale factor and x value?
    9·1 answer
  • If the age of person A is 7 years more than that of person B and the sum of there ages is 25 years old how old is person A ? (Br
    5·2 answers
  • A cone has the same radius and height as a cylinder which has greater volume the cone or the cylinder
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!