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
SSSSS [86.1K]
2 years ago
15

How Many Close Confidants Do People Have? In a recent study,1 2006 randomly selected US adults (age 18 or older) were asked to g

ive the number of people in the last six months with whom you discussed matters that are important to you. The average number of close confidants was 2.2, with a standard deviation of 1.4. Hampton, K.,. Goulet, L., Rainie, L., and Purcell, K, "Social Networking Sites and Our Lives.' Pew Research Center.
(a) Find the margin of error for this estimate if we want 99% Round your answer to three decimal place
Mathematics
1 answer:
yaroslaw [1]2 years ago
7 0

Answer:

0.08065

Step-by-step explanation:

Given that in a recent study,1 2006 randomly selected US adults (age 18 or older) were asked to give the number of people in the last six months with whom you discussed matters that are important to you.

If X is random variable then X has mean 2.2 and s = 1.4

n=2006

Std error of mean =\frac{1.4}{\sqrt{2006} } \\=0.03126

For 99% since sample size is large, t and z distn almost coincide.

Hence we can take 2.58 as critical value

Margin of error at 99% =2.58*0.03126\\=0.08065

You might be interested in
Whats 9+10? dont answer wrong
ozzi

19

Step-by-step explanation:

when we add 9 and 10 we will get sum 19

4 0
3 years ago
Read 2 more answers
Factor each expression 22x-11y+44
Mkey [24]
11(2x-y+4)
The GCF is 11
6 0
3 years ago
Beth filled 32 jars with paint. If each jar holds 1 pint of paint how many gallons of paint did Beth use
Sloan [31]
If there are 8 pints in a gallon there are 4 gallons 32(pints) divided by 8 is 4
3 0
3 years ago
A customer purchased a furniture for Rs.3390 with 13% VAT . Find the cost of the furniture without VAT?
Sergeu [11.5K]
Lypypxupcouckgxlyxkkgxk gc kyxotxlyxoyxlyxltzlyxl h luck llyxlyxoyxlyxl
3 0
3 years ago
Read 2 more answers
Write an equation of the line that passes through the given point and has the given slope.
ycow [4]

Answer:

y = 1/2x + 1

Step-by-step explanation:

m = 1/2

Slope-intercept:

y - y1 = m(x - x1)

y - 3 = 1/2(x - 4)

y - 3 = 1/2x - 2

y = 1/2x + 1

5 0
3 years ago
Other questions:
  • What two values of x are roots of the polynomial below
    15·1 answer
  • What is the justification for step 1 in the solution process?
    11·1 answer
  • What is a slope of (4,2) (-1,2)
    8·1 answer
  • Considere o produto 2.2.2.2.2.2.Escreva-o como potência de base.<br> OBS:Não é de marcar...
    10·1 answer
  • HELP ME! NEED TO SUBMIT ASAP!!! ***ADDED PICTURE***
    8·1 answer
  • SOMEONE PLEASE HELP ME OUT!!!!
    13·2 answers
  • Shereen lives in London and takes a plane to Madrid. When Shereen left the house it was -5 degrees. When the plane landed in Mad
    9·2 answers
  • The area of a circle, in terms of π, is 196π m2.<br> Find the value of the radius.
    5·1 answer
  • Determine la ecuación de la recta normal a la curva f(x)=ax(bx+a) en el punto de abscisa x=1. Dar como respuesta el intercepto a
    12·1 answer
  • Find the length of side AB. Round your answer to the nearest tenth:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!