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
Elena L [17]
3 years ago
8

8. Given the standard deviation of 16 for a population and a 95% confidence level, find the margin

Mathematics
1 answer:
Kazeer [188]3 years ago
3 0

Answer:

4.0486

Step-by-step explanation:

The margin of error is calculated using  E=z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} }

Where n=60 is the sample size and \sigma=16 is the population standard deviation.

The critical value corresponding to 95% confidence interval is z_{\frac{\alpha}{2}}=1.96

We substitute the values to obtain;

E=1.96*\frac{16}{\sqrt{60} }

E=1.96*2.06559=4.0486

You might be interested in
Steve's bedroom measures 12 feet by 13 feet. Ricardo's bedroom measures 8 feet by 14
lina2011 [118]

Answer: Steve's bedroom has the greater area.

Step-by-step explanation: The formula for area is Area = Length x Width.

So all you have to do to figure this out is multiply the Width of the rooms by the length.

So Steve's room is 12ft X 13ft = 156ft

Ricardo's room is 8ft X 14ft = 112ft

156ft > 112ft

Steve's room has a greater area.

4 0
3 years ago
What is the mass, in grams, of the object being measured in the triple beam balance shown below?
muminat

Answer:

  102.5 g

Step-by-step explanation:

The mass is the sum of the values indicated by the sliders:

  100 g + 0 g + 2.5 g = 102.5 g

5 0
4 years ago
Read 2 more answers
{x{ x + 4<0 or 6x>-12)
lora16 [44]

Answer:

x\in (-\infty , -4) \cup (-2,+\infty)

Step-by-step explanation:

Solve the system of inequalities:

x + 4 < 0

OR:

6x > -12

The first inequality yields the solution:

x < -4

The second inequality gives the solution:

x > -2

The total solution is the disjunction of the individual solutions, i.e., the union of both.

It can be expressed as

\mathbf{x\in (-\infty , -4) \cup (-2,+\infty)}

4 0
3 years ago
German Flight School Eric created a rectangle patio using 1 foot square paving stones which are sold in batches by the Dozen the
Cloud [144]
They would need to buy 5 dozens because the area is 56 and 12 times 5 is 60. 
7 0
3 years ago
Y=-155. Put in a table of 3 rows.
Alja [10]

Answer:

51.6666666667

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Is the following true or false?
    5·1 answer
  • X^2+ x - 2/x^3 - x^2 + 2x - 2
    14·1 answer
  • A 16-oz bottle of water costs $1.44. What is the cost per ounce?
    8·1 answer
  • Please answer now, 50 points!
    7·1 answer
  • Answer this question please ​
    13·1 answer
  • the student council set a goal of raising at least $500 in flower sales. so far it has raised $415 .write an inequality to show
    7·2 answers
  • Need some help ASAP!!!!!!
    15·1 answer
  • A poll of 827 students at Alpha State College found that 61% of those polled preferred a quarter system to a trimester system. E
    5·1 answer
  • Which function is best represented by this graph?
    14·1 answer
  • 29. Find the value of t if<br><br> t:7=1:2
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!