subject
Mathematics, 15.01.2021 02:40 ceceallen2003

A large city’s transit department claims that only 10% of city buses run off schedule. To test this claim, a random sample of 10 buses is chosen at random. Five of the buses are running off schedule. To see how unusual this sample of buses is, a simulation of 100 trials was conducted under the assumption that 10% of the buses run off schedule. A dotplot titled city buses has number of buses running off schedule on the x-axis, and frequency on the y-axis. 0, 12; 1, 26; 2, 22; 3, 16; 4, 11; 5, 2; 6, 1.

Based on the dotplot of the simulation results and the sample of 10 buses, which conclusion can be drawn?

The true probability that a city bus is running off schedule is 3%.
If we continued to take more samples of 10 buses, the center of the distribution would shift to 1.
It is most likely that exactly one out of 10 buses is running off schedule.
There is about a 3% chance that 5 or more buses are running off schedule. This is unusual and is convincing evidence that the true probability that a bus is off schedule is more than 10%.

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 17:30, Decaide
Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys
Answers: 2
image
Mathematics, 21.06.2019 18:00, kalibaby
Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)
Answers: 2
image
Mathematics, 21.06.2019 18:30, FailingstudentXD
Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.
Answers: 3
image
Mathematics, 21.06.2019 22:30, coolcat3190
What is 1.5% of 120 or what number is 1.5% of 120
Answers: 2
You know the right answer?
A large city’s transit department claims that only 10% of city buses run off schedule. To test this...

Questions in other subjects:

Konu
Mathematics, 21.05.2021 23:40
Konu
Mathematics, 21.05.2021 23:40
Konu
Social Studies, 21.05.2021 23:40