Answer:
The 95% confidence interval for the proportion of all people in this age group who had a TV in their room at the time of the poll is (0.6313, 0.6887).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
For this problem, we have that:
Of these 1048 teenagers, 692 had a television in their room. This means that 
95% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
The lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval for the proportion of all people in this age group who had a TV in their room at the time of the poll is (0.6313, 0.6887).
Step-by-step explanation:
You have to add all the numbers equals 160.
Then divide <em>how </em><em>many</em><em> </em><em>numbers</em><em> </em><em>there</em><em> </em><em>are</em><em>.</em> There are 20 numbers. Then, it is the sum divided by the count.
Hope this helps. Good Luck!
Triangle has 2 equal sides so it's isosceles triangle
answer
<span>A.
isosceles</span>
1/4 per day=4 days for one outfit so 4x18=72
Answer:
$520.28
Step-by-step explanation:
The finance charge is the amount that Emma will pay in order to cover the processing costs of the bedroom set. In this case it would be $520.28. You have first find the down payment cost ($384) and then find how much she needs to pay each month to cover the rest of the cost ($66.34) and multiply it by the 42 months to get $2786.28. Add the down payment onto that and subtract the original cost and you will get your finance charge of $520.28. Hope this helps!
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