Select the correct answer from each drop-down menu. The diagram shows a round fountain surrounded by a circular path. The radius of the fountain is yards, and the distance from the center of the fountain to the outer edge of the path is yards.
The estimated area of the fountain is
square yards, and the estimated area of the path is
square yards.

Hint: The formula for the area of a circle is .

6.9 or 6.85

Step-by-step explanation:

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;