A sample of n = 38 data values randomly selected from a normally distributed population has standard deviation s = 5.5. Construct a 95% confidence interval for the population standard
deviation. Round your endpoints to one decimal place.

What is the ratio of the length of an object in yards to the length of the same object in miles?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth

What is the volume of a rectangular crate that has dimensions 9 inches by 9 inches by 1 feet? 1,458 in.3 121.5 in.3 1,012.5 in.3 36 in.3