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
Mnenie [13.5K]
2 years ago
14

In a random sample of 250 students, 150 were in favor of longer hours at the school library. At 98% level of confidence, what is

the margin of error?
Select one:

0.051


0.080


0.065


0.072


0.078


0.061
Mathematics
1 answer:
Wewaii [24]2 years ago
3 0

0.072 is the margin of error.

<h3>What is standard error?</h3>

The standard error (SE) of a statistic is the standard deviation of its sampling distribution or an estimate of that standard deviation.

According to the question,

In a random sample of 250 students,

p= 0.98 (or 98%) were in favor of longer hours at the school library.

The standard error of p(the sample proportion) is (approximately)

The standard error of p =   \sqrt{\frac{p(1-p)}{n} }

p = 0.98

1 - p = 1 - 0.98 = 0.02

Here,

n = 250

The standard error of p =   \sqrt{ \frac{0.98 (0.02) }{250}

The standard error of p ≈   0.072

Therefore,

The margin of error is 0.072.

Learn more about is standard error here:

brainly.com/question/14524236

#SPJ1

You might be interested in
Calculate the length of XY
vovangra [49]

Answer:

18.027756

Step-by-step explanation:

Pythagorean Theorem

10²+15²=c²

100+225=c²

325=c²

√325=c

c=18.027756

5 0
3 years ago
Flor and Mo both donated money to the same charity. Flor gave three times as much as Mo. Between the two of them, they donated $
BlackZzzverrR [31]
To answer this question, you would divide the total by 3 to find the money that Mo gave. so 280/3= $93.33. I would check my math, just to be safe, however, I hope this helps you out.
6 0
3 years ago
What is the average rate of change from x = −4 to x = 1?
kati45 [8]

Answer:

What is the average rate of change from x = −4 to x = 1? x= -4 x + 5

5 0
2 years ago
HELP PLEASE DUE TODAY
N76 [4]

1 A. 5

1 B. 12.9

2. For this one, u can write any number less than 4.7, which could be 3, 2, -100, 1.21, etc.

3. For this one, u can write any number greater than (positive!) 2.6, such as 10, 30, 3.1415, etc.

hope this helps!

6 0
2 years ago
PLEASE HELP!!!!
Semmy [17]
You should put 4 as x, -3 as y and a as slope to make an equation :
- 3 =  a \times 4
then you can find the slope and the correct equation of the line :

the slope is :
- 3 = 4a \\ a =  \frac{ - 3}{4}
so the equation of the line will be
y =  \frac{ - 3}{4}  x
D is true
hope this helps
5 0
3 years ago
Other questions:
  • What is the volume of the frustum? Express the answer in terms of π.
    10·2 answers
  • When asked to factor the trinomial , a student gives the answer (x – 7)(x + 7). Which of the following statements is true?
    5·1 answer
  • Stephanie has 6 classes a day at school. Each class is 52 minutes long. She goes to school 5 days a week. How much time does she
    10·1 answer
  • Convert the fraction 3/22 into a repeating decimal
    8·2 answers
  • 8) Pick the two best options below for the solutions of this function:
    9·1 answer
  • Find the amplitude:<br> y= 5 cos (1/4x)
    5·1 answer
  • Write the slope-intercept form of the equation of each line
    8·1 answer
  • Which of the following equations has an infinite number of solutions?
    11·1 answer
  • 5m+2n-7-2m+15 Simplified expression
    10·1 answer
  • What will be the result of substituting 2 for x in both expressions below?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!