The mean life of a tire is 30 000 km
SpletA test sample of 30 new tyres has a mean lifespan of 31 000 km. Can you conclude that the product is significantly better than the current one at the 5% 1) A company makes car tyres. The lifespan are normally distributed with a mean 30 000 km and standard deviation 2 … SpletQuestion 903015: The mean lifetime of a certain tire is 30,000 miles and the standard deviation is 2,500 miles. a.) If we assume nothing about the shape of the distribution, approximately what percentage of all such tires will last between 22,500 and 37,500 miles? Answer by ewatrrr(24785) (Show Source):
The mean life of a tire is 30 000 km
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SpletThe mean life of a tire is 30,000 km. The standard deviation is 2000 km. Then, 68% of all tires will have a life between km and km. Question. Gauthmathier4486. Grade . 9 · YES! We solved the question! Check the full answer on App Gauthmath. Get the Gauthmath App. Good Question (143) Gauth Tutor Solution. Splet04. jun. 2024 · A tire manufacturer claims that its tires have - Gauthmath. 17. A tire manufacturer claims that its tires have a mean life of 40,000kms. A random sample of 46 of these tires is tested and the sample mean is38,000 km. Assume that the populations standard deviation is 2,000 km and the lives of tires are approximately normally distributed.
SpletThe mean life of a tire is 30,000 km. The standard deviation is 2000 km. - What percent of the tires will have a life that exceeds 28,000 km? - If a company purchased 2000 tires, … Splet17. sep. 2024 · Objective 50,000 km. It is evident that the four tyres on a citycar start off at an advantage compared to those fitted on a car with sporting characteristics, or in any case which is heavier. The latter require tyres with a broader footprint on the ground, which equates to a greater grip, but also to much more friction.
SpletThe mean life of a tire is 30 000 km. The standard deviation is 2000 km. a. About 68% of all tires will have a life between km and km. b. What percent of the tires will have a life that … Splet68% of all tires will have a life between 28000 km and 32000 km. (b) According to Empirical rule, the area covered between mean minus two standard deviations and mean plus two standard deviations of a normal distribution is 95%.
SpletThe standard deviation is 2000 km. Then, 68% of all tires will have a life between _ km and km. ... Grade . 9 · 2024-08-30. YES! We solved the question! Check the full answer on App Gauthmath. Get the Gauthmath App. The mean life of a tire is . The standard deviation is . Then, of all tires will have a life between _ and . Good ...
SpletThe mean lifetime of a certain tire is 30,000 miles and the standard deviation is 2500 miles. If we assume nothing about the shape of the distribution, approximately what percentage … dreams computersSpletExpert Answer mean = 30000 standard deviation = 2000 a) by 68 95 99.7 rule 68% confindenc interval is (mean-sd, mean+sd) 68% confindence interval is (30000-2000,30000+2000) i.e (28000, 32000) 68% of all tires will have a life between 28000 … View the full answer Previous question Next question dreamscope sign inSpletCreated Date: 4/26/2024 4:37:50 PM england in australia 2013SpletThe mean life of a tire is 30 000 km. The standard deviation is 2000 km. a) 68% of all tires will have a life between _____km and _____km. b) 95% of all tires will have a life between _____km and _____km. c) What percent of the tires will have a life that exceeds 26000 km? d) If a company purchased 2000 tires, how many tires would you expect to ... england in bible prophecySplet04. apr. 2024 · Ultra-high-performance tires generally wear quicker. In fact, some tested UHP tires tested in western Texas showed wear that indicates they will last to just 25,000 to 30,000 miles. To make... england in bubble writingSpletThe mean life of a tire is 30 000 km. The standard deviation is 2000 km. a) 68% of all tires will have a life between b) 95% of all tires will have a life between _km and km. c) What … dreamscope plus phone numberSpletDevelop a 90% confidence interval for the mean useful life of all car tires. One hundred car tires are tested and the mean useful life comes out to 50,000 miles with a sample standard deviation of 5,000 miles. Develop a 95% confidence interval for … dreams controlling people have