This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An inventor has developed a new spray coating that is designed to improve the wear of bicycle tires. ... (Read 120 times)

stock

  • Hero Member
  • *****
  • Posts: 573
on: Feb 14, 2020
An inventor has developed a new spray coating that is designed to improve the wear of bicycle tires. To test the new coating, the inventor randomly selects one of the two tires on each of 50 bicycles to be coated with the new spray. The bicycle is then driven for 100 miles and the amount of the depth of the tread left on the two bicycle tires is measured (in millimeters). It is desired to determine whether the new spray coating improves the wear of the bicycle tires. The data and summary information is shown below:



​

CoatedNon-Coated Difference

Mean 1.38 0.85 0.53

Std. Dev. 0.12 0.11 0.06

Sample Size 50 50 50


Use the summary data to construct a 90% confidence interval for the difference between the means.
◦ 0.53 ± 0.01396
◦ 0.53 ± 0.01663
◦ 0.53 ± 0.04512
◦ 0.53 ± 0.03787
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by stock on Feb 14, 2020

amynguyen1221

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Feb 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


stock

  • Member
  • Posts: 573
Reply 2 on: Feb 14, 2020
YES! Correct, THANKS for helping me on my review

triiciiaa

  • Member
  • Posts: 349
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Tattoos and Body Piercings: This patient developed cellulitis from tattoo ink Tattoos and Body Piercings: This patient developed cellulitis from tattoo ink
Cryptorchidism. (a) In complete cryptorchidism, the testes of a newborn have failed to descend into Cryptorchidism. (a) In complete cryptorchidism, the testes of a newborn have failed to descend into
A water spray bottle is an excellent diagnostic tool to help find an intermittent engine misfire ... A water spray bottle is an excellent diagnostic tool to help find an intermittent engine misfire ...
Typical ignition timing map developed from testing and used by the vehicle computer to provide the ... Typical ignition timing map developed from testing and used by the vehicle computer to provide the ...
Baby's eyes are developed in 6th week of pregnancy Baby's eyes are developed in 6th week of pregnancy
Using FITT to Improve Fitness Using FITT to Improve Fitness
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library