Mathematics, 21.02.2020 22:01 mckeeshallea400
Suppose that a committee is studying whether or not there is waste of time in our judicial system. It is interested in the mean amount of time individuals waste at the courthouse waiting to be called for jury duty. The committee randomly surveyed 81 people who recently served as jurors. The sample mean wait time was 8 hours with a sample standard deviation of 4 hours. a.
i. x¯= 8
ii. sx = 4
iii. n = 81
iv. n – 1 = 80
b. Define the random variables X and X¯in words. X is amount of time individuals waste at the courthouse waiting to be called for jury duty. X- is mean amount of time that sample of 81 people who recently served at jurors.
c. Which distribution should you use for this problem? Explain your choice.
d. Construct a 95% confidence interval for the population mean time wasted.
i. State the confidence interval.
ii. Sketch the graph.
iii. Calculate the error bound.
e. Explain in a complete sentence what the confidence interval means.
Answers: 3
Mathematics, 21.06.2019 16:00, Rainey1664
In the 30-60-90 triangle below side s has a length of and side r has a length
Answers: 2
Mathematics, 21.06.2019 20:00, madisonrosamond99
Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.
Answers: 1
Mathematics, 22.06.2019 01:00, yselahernandez02
Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.
Answers: 1
Mathematics, 22.06.2019 01:00, isabellecannuli
Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?
Answers: 1
Suppose that a committee is studying whether or not there is waste of time in our judicial system. I...
Biology, 21.09.2019 10:50
Business, 21.09.2019 10:50
History, 21.09.2019 10:50
History, 21.09.2019 10:50
Mathematics, 21.09.2019 10:50