Alright, lets get started.
The distance around the edge of the table top is 4.7 feet.
It means, circumference will be 4.7 feet.
Dividing 2pi in both sides
feet
It means the radius of the circle table = 0.748 feet
So the area will be = square feet
So the area Nami needs is 1.76 square feet. : Answer
Hope it will help :)
Answer:
The 95% confidence interval for the true proportion of all teams that had a season winning percentage better than 0.500 is (0.1853, 0.6147).
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 .
For this problem, we have that:
8 out of the 20 teams in the sample had a season winning percentage better than 0.500. This means that .
95% confidence interval
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 true proportion of all teams that had a season winning percentage better than 0.500 is (0.1853, 0.6147).