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
JulsSmile [24]
3 years ago
5

A dietitian wants to know the average time spent on breakfast in a primary school. The dietitian randomly samples 16 students an

d finds that the average is 15.8 minutes with a standard deviation of 2.31 minutes. Assume that the distribution of the time spent on the breakfast is normally distributed. The dietitian finds a 90% confidence interval for this sample is (14.788, 16.812) Flag question Select one or more:_________. a. The margin of error is 1.012. b. The margin of error is 2.024 c. The margin of error is 0.950 d. We believe that the true mean time spent on breakfast in this primary school is between 14.788 and 16.812 minutes. e. If we take many other samples from this population, 90% of them will have a sample mean that is between 14.788 and 16.812. f. There is a 90% chance that the true mean is between 14.788 and 16.812 minutes.
Mathematics
1 answer:
8090 [49]3 years ago
8 0

Answer: is their any picture? or an example?

You might be interested in
Determine the missing number in the equation 13-2=12-?​
soldier1979 [14.2K]

For the equation to work, you have to have the same number on both sides of the equal sign

so to find ?, you can do:

13 - 2 = 12 - ?       Simplify

11 = 12 - ?       Subtract 12 on both sides

-1 = - ?     Multiply -1 on both sides

1 = ?

5 0
3 years ago
Find last​ year's salary​ if, after a 4 % pay​ raise, this​ year's salary is $ 33,280.
son4ous [18]

Answer: 31,948.80

Step-by-step explanation: I thin it his is correct. I multiplied the original amount by .04 then subtracted that from the original number.

6 0
3 years ago
Please help soon! Thanks! Solve for x
spin [16.1K]

Answer:

x=27\degree

Step-by-step explanation:

\because AC || DE.... (given)

\therefore m\angle CAD= m\angle EDF\\ (corresponding \: \angle s)

\therefore m\angle BAD= m\angle EDF\\(\because B\in \overleftrightarrow{AC})

\therefore m\angle BAD= 2x\\(\because m\angle EDF=2x)

In\:\triangle BAD,

m\angle BAD+m\angle BDA+m\angle ABD= 180\degree

2x+2x+72\degree = 180\degree

4x= 180\degree -72\degree

4x= 108\degree

x= \frac {108\degree}{4}

x=27\degree

5 0
3 years ago
Consider the following Expression.<br> 6x-9x-2=-2x-2 <br> What is the value of x?
xenn [34]

Answer:

The answer is X = 0

3 0
3 years ago
Read 2 more answers
What is the solution for 2y=x+2<br> x-3y=-5
Mars2501 [29]

Answer:

x = 4

y = 3

Step-by-step explanation:

<u>Given </u><u>equations </u><u>:</u><u>-</u>

  • 2y = x + 2
  • x - 3y = -5

<u>Second</u><u> </u><u>equation</u><u> </u><u>can </u><u>be</u><u> written</u><u> as</u><u> </u><u>,</u><u> </u>

  • x - 3y = -5
  • -3y = -x - 5

<u>Adding</u><u> </u><u>them </u><u>:</u><u>-</u><u> </u>

  • -3y + 2y = 2 -5
  • -y = -3
  • y = 3

<u>Put </u><u>this </u><u>in </u><u>(</u><u>ii)</u><u> </u><u>:</u><u>-</u><u> </u>

  • x = 3y - 5
  • x = 3*3 - 5
  • x = 9 -5
  • X = 4
8 0
3 years ago
Read 2 more answers
Other questions:
  • 15 POINTS
    15·1 answer
  • If the original price is ₱450 and the rate of discount is 12%. A.What is the amount of reduction? B.What is the sale price?
    6·1 answer
  • What is the surface area
    9·1 answer
  • Someone please help me it's worth ten points and I'm marking ppl as brainless if you help me make a 100
    15·1 answer
  • Can someone help me on this with the steps? thanks!
    8·2 answers
  • Consider the function f (x) = StartFraction x squared + 11 x minus 12 Over x minus 1 EndFraction.
    12·2 answers
  • Plz help need step by step
    14·1 answer
  • Please help if you want brianleist!! :) uhm don't mind update- NO LINkS child..<br> Ty!
    5·2 answers
  • Identify the statement as an expression or an equation.<br> 3(4x - 12)<br> 2<br> 4(x - 3)
    8·1 answer
  • 6. Which statement about this figure is true?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!