A researcher calculated a confidence interval for the mean a…

A researcher calculated a confidence interval for the mean amount of time it took a car to stop from 60 miles per hour. His results were (6.9 seconds, 7.8 seconds) with 99% confidence. Determine the proper notation and the value of both the point estimate and margin of error for the mean stopping time. WE USE GREEK LETTERS FOR PARAMETERS (population), ROMAN LETTERS FOR STATISTICS (sample)

A father records the amount of milk remaining in all 1 gallo…

A father records the amount of milk remaining in all 1 gallon cartons on their shopping day. Which of the following vocabulary words would be correct to describe the variable “The amount of milk remaining in a 1 gallon carton”? Hint: is the variable countable? measurable ?