A simple random sample of size n= 15 is drawn from a population that is normally distributed. The sample mean is found to be x = 53 and the sample standard deviation is found to be s = 10. Construct a 95% confidence interval about the population mean.
The lower bound is
The upper bound is
(Round to two decimal places as needed.)

Describe a situation that you could represent with the inequality x< 17

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.