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
jolli1 [7]
3 years ago
9

The number of employees per department are normally distributed with a population standard deviation of 198 employees and an unk

nown population mean. If a random sample of 22 departments is taken and results in a sample mean of 1460 employees, find the error bound (EBM) of the confidence interval with a 80% confidence level.
Mathematics
1 answer:
cricket20 [7]3 years ago
6 0

Answer:

EBM = +-54.126

Step-by-step explanation:

In this question we have confidence interval to be 80%

The formula to solve this is in the attachment.

Bar X = 1460

Z-alpha/2 = 1.282

Sd = standard deviation = 198 employees

n = 22 departments

After we have inserted all values in to the formula we have:

1460 +-(1.282*198/√22)

= 1460+-(54.12604)

= (1405.87, 1514.126)

The error bounded mean EBM

= +-z-alpha/2 x (sd/√n)

= 1.282 x 198/√22

= 1.282 x 42.22

EBM = +-54.126

You might be interested in
LOTS OF POINTS ANSWER ASA P , painter is painting a rectangular wall that measures 25.1 ft by 18.5 ft. Each gallon can of paint
svlad2 [7]

Answer:

1.548 gallons

Step-by-step explanation:

Length of the rectangular wall = 25.1 ft.

Width of the rectangular wall = 18.5 ft.

Area of the rectangular wall = length * width = 25.1 * 18.5

= 464.35 square feet

300 square feet wall can be painted using 1 gallon of paint.

=> 1 square feet wall can be painted using \[\frac{1}{300}\] gallon of paint.

=> 464.35 square feet wall can be painted using \[\frac{1}{300} * 464.35\] gallon of paint.

= 1.548 gallons of paint

3 0
3 years ago
Read 2 more answers
The Interest on $2,000 for 2 years is $320 what is the simple interest rate?
Ronch [10]

Answer:

It would be 20

Step-by-step explanation:because you have to divide 320 by 2 which equals $160 for 1 year and then divide that by 2 again would be $80 for 6 months then divide it by 2 again which would be $40 and 3 months for it then divide it by 2 again and 1 and a half months equal $20

6 0
2 years ago
Given: Circle O with diameter LN and inscribed angle LMN Prove: is a right angle. What is the missing reason in step 5? Statemen
ZanzabumX [31]

Answer:

Inscribed angle theorem

Step-by-step explanation:

This theorem states that an angle θ inscribed in a circle is half of the central angle 2θ that subtends the same arc on the circle.

In this case, the angle is ∠LMN and the arc is arc LN. Arc LN measures 180°,  because segment LN is the diameter of the circle. Then, by the theorem:

∠LMN = (1/2)*arc LN = (1/2)*180° = 90°

3 0
3 years ago
What is the maximum number of snowmen they can make?
Anastasy [175]
To answer this question, you do 5 2/3 divided by 1/2. First, change 5 2/3 to 17/3. Then, use the reciprocal method by doing 17/3 times 2/1, which gives you 34/3. That’s 11.3 repeating, so they can make 11 whole snowmen.
3 0
3 years ago
When a number of oranges is divided among six girls, each gets four
sergejj [24]

Answer:

3

Step-by-step explanation:

ok first multiply 6 and 4 it becomes 24 then we divide 24 with 8.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is √p⁵q¹⁰ expressed in simplified form
    5·1 answer
  • The answer plsssssssss
    6·1 answer
  • What does this symbol tell you to do (:) ?​
    11·1 answer
  • Which sequence is ARITHMETIC?
    8·2 answers
  • PLS i need help! and an explanation
    10·1 answer
  • A square has a side of 3x - 4 what is the area of the Square in terms of x?
    10·1 answer
  • Which of the following equations has roots r = -1, x = -2, and x = 3i?
    10·1 answer
  • Micah buys 10 pens for every 2 pencils. Rachel buys 12 pens for every 3
    10·1 answer
  • When you have -13+20 how exactly did you get 7?​
    10·2 answers
  • 4. A box is 20 inches wide and 8 inches tall. If we increase the width to 50 inches, how tall will it be?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!