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
Soloha48 [4]
3 years ago
12

A building manager installs sensors to see how often people turn of the lights when they leave a room. After a month the manager

has sample size of 625, a sample mean of 47%, and a sample standard deviation of 5%. What is the confidence level for a confidence interval of 46.8% to 47.2%?
Mathematics
2 answers:
RideAnS [48]3 years ago
5 0

Answer:

The confidence level for a confidence interval of 46.4% to  47.6% is 99.7%.

Explanation:

First of all, the choices for this question are missing so I will include the ones I found for this exact question. The missing options are as follows:

A. 85% B. 95% C. 68% D. 99.7%

When it comes to statistics, a confidence interval (CI) is  a type of interval estimate  of a population parameter. Statistics is all about drawing conclusions in the face of uncertainty. Whenever you take a sample, you can’t be completely certain that your sample truly reflects the population it’s drawn from.

In conclusion, from the choices presented, the best option is the last one. Option D.


Aleks [24]3 years ago
3 0

Answer:

For apex the answer is 68%

Step-by-step explanation:

You might be interested in
Multiply. (2x + 6)^2
Simora [160]
Answer: B
(2x + 6)^2 can be rewrote as (2x + 6)(2x + 6).
Multiply out to get 4x^2 + 24x + 36
6 0
2 years ago
Read 2 more answers
WARM-UP Solutions
Andreas93 [3]

Answer:

x = 2

Step-by-step explanation:

Rearrange terms

Subtract from both sides of the equation

Simplify

Divide both sides of the equation by the same term

Simplify

If you have like this again type it into a search engine it will answer

that's

where I got this

6 0
3 years ago
What is the value of 4³÷ 2³ ?
Sunny_sXe [5.5K]

Answer:

2^3 or 8

Step-by-step explanation:

4^3\div 2^3= \\\\(2^2)^3\div 2^3= \\\\2^{2\cdot 3}\div 2^3= \\\\2^6\div 2^3=\\\\2^{6-3}=\\\\2^3=\\\\8

Hope this helps!

3 0
3 years ago
Read 2 more answers
Shakira se presentará en la Ruta del Vino, y para ello su anuncio ha aparecido en un espectacular por la Avenida Reforma, si la
m_a_m_a [10]

Answer:

82.4 cm

Step-by-step explanation:

The computation of the height is given below:

As we know that each right triangle contains the top angle of 20 degrees

So, the right angle & the bottom corner angle equivalent to

= 180 - 90 - 20

= 70 degrees

Now the height is

tangent = opposite leg ÷ adjacent leg

tan (70°) = height ÷ 30 cm

height = 30 cm × tan (70°)

= 82.4 cm

6 0
3 years ago
Is four L greater than or less than 3000 mL?
matrenka [14]
4liters is greater than 3000mL.
thats because 3000mL equals to 3liters
hope it helped
4 0
3 years ago
Other questions:
  • A survey showed that 75% of middle school students have at least one sibling. If Mrs.McCall has a total of 72 students, how many
    10·1 answer
  • Why do you think we see phases of the Moon?
    15·1 answer
  • If 140 students want to go on the Coronado Island field trip and are ALL riding together, how many cars will they need if each c
    7·1 answer
  • Factor the trinomial completely.<br><br> a^4 -2a^2 - 35
    15·1 answer
  • A spinner has four different colors red green blue and yellow if the spinner is spun once in a coin is flipped what are the chan
    6·1 answer
  • 1 The Walters' backyard pool is rectangular in
    7·1 answer
  • 72 paper clips decreased by 63% paper clips
    7·2 answers
  • There is a bag filled with 5 blue and 4 red marbles.
    15·1 answer
  • -18x+2x-15x+23x-12x-4x <br> Combine like terms
    7·2 answers
  • Estimate the solution of the system of equations
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!