subject
Mathematics, 28.06.2019 10:20 daliakreynin

Anita works at a bike shop. the shop receives a shipment of new tires that are supposed to be less likely to get flats than the shop's current tires. anita puts the current tires on a random sample of 8 bikes and puts the new tires on a random sample of 8 bikes. she collects data on the number of flats for each bike over a one-year period. current tires: 4, 5, 7, 2, 3, 9, 7, 5 new tires: 1, 3, 3, 3, 1, 2, 1, 2 the means are 5.25 and 2 respectively, for a difference of 3.25. anita wants to know if this is significant or if it could be caused by chance. to find out, she re-randomizes the results 15 times and finds the differences of the means. the dot plot shows the data. what is the best conclusion for anita to make based on the data? the difference of 3.25 is significant because the re-randomizations show that it is within the range of what could happen by chance. the difference of 3.25 is not significant because the re-randomizations show that it is within the range of what could happen by chance. the difference of 3.25 is not significant because the re-randomizations show that it is outside the range of what could happen by chance. the difference of 3.25 is significant because the re-randomizations show that it is outside the range of what could happen by chance.

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 17:30, scoutbuffy2512
How do you use the elimination method for this question? explain, because i really want to understand!
Answers: 1
image
Mathematics, 21.06.2019 18:30, cyndy50
Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap
Answers: 1
image
Mathematics, 21.06.2019 22:00, d0ram0UsE
Rick is driving to his uncles house in greenville, which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120
Answers: 3
image
Mathematics, 21.06.2019 23:00, maiacheerz
12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart
Answers: 1
You know the right answer?
Anita works at a bike shop. the shop receives a shipment of new tires that are supposed to be less l...

Questions in other subjects: