Answer:
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The population proportion have the following distribution
Solution to the problem
We assume for this case a confidence level of 95%. In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by 
and 
. And the critical value would be given by:
The confidence interval for the mean is given by the following formula:
The margin of error for the proportion interval is given by this formula:
(a)
And if we replace the values obtained we got this:
Answer:
10/49
Step-by-step explanation:
You just have to multiply the numerators and denominators from each other, then cancel out the common factors that is 3 only.
:)
Answer:
The ruins of the day
Painted with a scar
And the more I straighten out
The less it wants to try
The feelings start to rot
One wink at a time
Oh oh
Forgiving who you are
For what you stand to gain
Just know that if you hide
It doesn't go away
When you get out of bed
Don't end up stranded
Horrified with each stone
On the stage
My little dark age
Picking through the cards
Knowing what's nearby
The carvings on the face
Say they find it hard
And the engine's failed again
All limits of disguise
The humor's not the same
Coming from denial
Oh oh
I grieve in stereo
The stereo sounds strange
I know that if you hide
It doesn't go away
If you get out of bed
And find me standing all alone
Open-eyed
Burn the page
My little dark age
I grieve in stereo
The stereo sounds strange
You know that if it hides
It doesn't go away
If I get out of bed
You'll see me standing all alone
Horrified
On the stage
My little dark age
Giddy with delight
Seeing what's to come
The image of the dead
Dead ends in my mind
Policemen swear to God
Love's seeping from the guns
I know my friends and I
Would probably turn and run
If you get out of bed
Come find us heading for the bridge
Bring a stone
All the rage
My little dark age
I grieve in stereo
The stereo sounds strange
I know that if you hide
It doesn't go away
If you get out of bed
And find me standing all alone
Open-eyed
Burn the page
My little dark age
All alone
Open-eyed
Burn the page
My little dark age
Step-by-step explanation:
Answer:
2.5 hours
Step-by-step explanation:
875 divided by 350=2.5
Answer:
52.8%
Step-by-step explanation:
The amount of alcohol is:
0.28 (6 pints) + 0.90 (4 pints) = 5.28 pints
So the concentration is:
5.28 pints / 10 pints × 100% = 52.8%.
