What does the Spanish word uno mean in English?
2 answers:
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Answer:
b. It will decrease by a factor of 2
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence interval
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The lower end of the interval is given by:
The upper end of the interval is given by:
The length of the interval is the subtraction of the upper end by the lower end, so it is:
This means that the length is inverse proportional to the square root of the size of the sample.
So, if the sample size is multiplied by 4, the length of the interval is going to decrease by a factor of 2.
Answer:
dollars per t-shirt
Step-by-step explanation:
<em>Read the problem and write your equation while following along with it</em>
We have 8 t-shirts
Lets 8 t-shirts be represented by 8t
So for our equation we will place and
Now it says we have a coupon that subtracts 4 dollars from our total
<h3>Our equation:The final part to add to our equation says that our total before tax was 36 dollars
<h3>So here is our equation:<em>add </em><em> to both sides</em>
<em>Divide both sides by</em>
dollars per t-shirt
-Side note, make sure to spell your question right. It was a tad bit confusing to read at the start.
-Brainliest please :)