lily539711
05.03.2021 •
Mathematics
Dog Pen - Jill has decided having a pen with the maximum
area might not be best. After all, the bigger the pen, the more it
will be to clean it. She now thinks that 20,000 square feet is
the best possible area for a dog pen. She is still using a total of
500 feet of fencing in addition to the side of the house.
Write an equation whose solution will give the distance the pen
should extend out from the house.
Solve your equation and explain your results.
Solved
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Ответ:
ngl you kinda cute tho
Step-by-step explanation:
Ответ:
c. 0.62%
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 30 - 1 = 29
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 29degrees of freedom(y-axis) and a confidence level of . So we have T = 1.6991
The margin of error is:
Sample of 30, standard deviation of 2%.
Then
0.62%, so option c.