Statistics

In this week DB you have to answer the following three questions. You needs to show your work to get credit, just writing answer will not get credit. You can use Canvas equation editor to do mathematical calculation

On a recent Statistics test, the scores were 15, 66, 66, 81, 82, 83, 85, 88, 90, 92, 93, and 95. Which measure of center is suitable to report–mean or median and why? Explain your reasoning by showing your work.
For the mathematics part of the SAT the mean is 514 with a standard deviation of 113, and for the mathematics part of the ACT the mean is 20.6 with a standard deviation of 5.1. Bob scores a 660 on the SAT and a 27 on the ACT. Determine on which test he performed better. (show your work)
The following is a sample of 19 November utility bills (in dollars) from a neighborhood:
52, 62, 66, 68, 72, 74, 74, 76, 76, 76, 78, 78, 82, 84, 84, 86, 88, 92, 96. Find the five -number summary. ( Show your work)

Sample Solution

ACED ESSAYS