Mathematics, 26.07.2019 03:20, amandasantiago2001
In a random sample of 23 people, the mean commute time to work was 30.6 minutes and the standard deviation was 7.2 minutes. assume the population is normally distributed and use a t-distribution to construct a 95% confidence interval for the population mean μ. what is the margin of error of muμ? interpret the results.
the confidence interval for the population mean muμ is ( , )
(round to one decimal place as needed.)
the margin of error of μ
(round to one decimal place as needed.)
interpret the results.
a. if a large sample of people are taken approximately 95% of them will have commute times between the bounds of the confidence interval.
b. with 95% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval.
c. with 95% confidence, it can be said that the commute time is between the bounds of the confidence interval.
d. it can be said that 95% of people have a commute time between the bounds of the confidence interval.
Answers: 2
Mathematics, 21.06.2019 22:00, reesewaggoner8
Uestion 1(multiple choice worth 5 points) (05.02)alex wants to paint one side of his skateboard ramp with glow-in-the-dark paint, but he needs to know how much area he is painting. calculate the area of the isosceles trapezoid. isosceles trapezoid with top base 12 feet, bottom base of 18 feet, and height of 6 feet. 72 ft2 84 ft2 90 ft2 108 ft2
Answers: 1
In a random sample of 23 people, the mean commute time to work was 30.6 minutes and the standard dev...
Mathematics, 19.11.2019 09:31
Mathematics, 19.11.2019 09:31
Mathematics, 19.11.2019 09:31