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
Allushta [10]
2 years ago
12

In a random sample of 62 professional actors, it was found that 40 were extroverts. Please find the point estimate, 95% confiden

ce interval for p, and provide a brief explanation of your answers.
Mathematics
1 answer:
den301095 [7]2 years ago
3 0

The point Estimate is 0.645 , the confidence interval is (0.525 ,0.764).

<h3>What is Point Estimate ?</h3>

The point estimate is the proportion of success in the sample.

From the data given

p = 40/62

p = 0.645

The point Estimate is 0.645

(b) Confidence interval for true proportion is

\rm {p -Z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}  , p +Z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}

For 95 % Z = 1.96

p =0.645

1-p = 0.355

putting the values

\rm {0.645 -1.96 \sqrt{\dfrac{0.645\times0.355}{62}}  , {0.645 +1.96 \sqrt{\dfrac{0.645\times0.355}{62}} \\

(0.525 , 0.764)

Lower Limit = 0.525

Upper Limit = 0.764

To know more about Point Estimate

brainly.com/question/17514579

#SPJ1

You might be interested in
Someone pls help asap this is supposed to be done it 3 min
insens350 [35]

Step-by-step explanation:

$75      30%      0.70(75) = x      $52.50

$18       65%      0.35(18) = x      $6.30

$60      30%     0.70x = 42        $42

$35       20%     0.80x = 28       $28

$150      25%     0.75(150) = x     $112.50

6 0
2 years ago
Read 2 more answers
Shahad put $65 in her lunch account. She spends $3 each day on lunch. If her account goes below $5, she will get a notice sent h
Anna [14]

Answer:

if the question is how long can she eat without a notice being sent home, its about 21 days

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the following product? (5√2-4√3)(5√2-4√3)
Galina-37 [17]

Step-by-step explanation:

(5√2-4√3)(5√2-4√3)=

(5√2-4√3)^2=(5√2)^2+(4√3)^2-2(5√2)(4√3)

=25*2+16*3-10√2*4√3

=50+48-10√2*4√3

=98-10√2*4√3 is the answer

6 0
3 years ago
Find x. (Use pic for more info)
V125BC [204]

Answer:

x=75

Step-by-step explanation:

Hey There!

If you didn't know the exterior angle of a triangle is equal to the sum of the opposite interior angles of a triangle

So essentially what I'm saying is that

2x-5=70+x

step 1 add 5 to each side

-5+5 cancels out

70+5=75

now we have

2x=70+x

step 2 subtract x from each side

x-x cancels out

2x-x=x

we're left with

x=75

8 0
3 years ago
Write an equation in slope-intercept form of the line shown.
Liula [17]

Answer:

Step-by-step explanation:

y2-y1/x2-x1

1+3

3-1

your slope is 4/2 or 2. keep going down to find what y is when x is 0, which happens to be -5

so now you have a slope and a y intercept you can solve  like y=mx+b where m is your slope and B is your y intercept

y=2x-5 is your answer

5 0
3 years ago
Read 2 more answers
Other questions:
  • Arlene is comparing the prices of two truck rental companies. Company A charges $7 per hour and an additional $30 as service cha
    13·1 answer
  • The eatery restaurant has 200 tables on the reason even if there's no there's no reservation for one half of the tables were
    5·1 answer
  • Given that the mass of an average linebacker at Ursinus College is 250 lbs and the radius of a pea is 0.50 cm, calculate the num
    7·1 answer
  • What would 2, 3, and 4 be?
    9·1 answer
  • Explain how to find the middle quartile of a box-and-whisker plot.
    6·1 answer
  • Which graph shows L(5,2)
    10·2 answers
  • Which graph best represents f(x)=6(3)x. PLEASE
    15·1 answer
  • Evaluate the expression: a(b – c) if a = -8, b = 12, and c = 4
    8·2 answers
  • The sum of twice a number and 4 is 12.
    11·2 answers
  • Which fraction has the greatest value? A number line going from negative 1 to positive 1 in increments of 1. StartFraction 5 Ove
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!