subject
Mathematics, 04.04.2020 02:18 lolz55678

Twelve different video games showing substance use were observed and the duration of times of game play (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the sample data to construct an 80% confidence interval estimate of sigma, the standard deviation of the duration times of game play. Assume that this sample was obtained from a population with a normal distribution.4,190 3,914 4,455 4,244 3,988 4,223 3,819 4,339 3,984 4,012 3,905 3,807 The confidence interval estimate is ___sec < sigma < sec

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 19:00, sonyalehardez
Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?
Answers: 2
image
Mathematics, 21.06.2019 21:50, xojade
6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution
Answers: 1
image
Mathematics, 21.06.2019 23:10, paradisetiyae5261
Use the distance formula to find the distance between (-3,5) and (3,1)
Answers: 1
image
Mathematics, 21.06.2019 23:30, webbhlharryteach
Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?
Answers: 1
You know the right answer?
Twelve different video games showing substance use were observed and the duration of times of game p...

Questions in other subjects: