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An automobile tire is rated to last for 35,000 miles. To an order of magnitude, through...
The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed...
The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with a mean of 32 and a standard deviation of 4. Round to the second. a) Find the 50 percentile of tire lifetimes. b) Find the tire life that has 70% above it. c) Find the two tire lives that hold the middle 15% Lower Upper d) The tire company wants to guarantee that its tires will last a certain number of miles. What...
The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed...
The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with mean = 41 and standard deviation = 4. Use the TI-84 Plus calculator to answer the following. (a) Find the 21st percentile of the tire lifetimes. (b) Find the 73rd percentile of the tire lifetimes. (c) Find the first quartile of the tire lifetimes. (d) The tire company wants to guarantee that its tires will last at least a certain number of miles....
The top-selling Red and Voss tire is rated 60000 miles, which means nothing. In fact, the...
The top-selling Red and Voss tire is rated 60000 miles, which means nothing. In fact, the distance the tires can run until wear out is a normally distributed random variable with a mean of 71000 miles and a standard deviation of 5000 miles. a. What is the probability that the tire wears out before 60000 miles? b. What is the probability that a tire lasts more than 81000 miles?
The top-selling Red and Voss tire is rated 70000 miles, which means nothing. In fact, the...
The top-selling Red and Voss tire is rated 70000 miles, which means nothing. In fact, the distance the tires can run until wear-out is a normally distributed random variable with a mean of 85000 miles and a standard deviation of 6000 miles. A. What is the probability that the tire wears out before 70000 miles? Probability = B. What is the probability that a tire lasts more than 94000 miles? Probability =
Suppose that the life span of a certain automobile tire is normally distributed with mu equals...
Suppose that the life span of a certain automobile tire is normally distributed with mu equals 23,000 miles and sigmaequals2500 miles. (a) Find the probability that a tire will last between 28,000 and 30,500 miles. (b) Find the probability that a tire will last more than 29,000 miles.
The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed...
The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with mean =μ39 and standard deviation =σ5. (a) What is the probability that a randomly chosen tire has a lifetime greater than 47 thousand miles? (b) What proportion of tires have lifetimes between 38 and 43 thousand miles? (c) What proportion of tires have lifetimes less than 44 thousand miles? Round the answers to at least four decimal places.
Normal Distribution. The lifetime of a certain type of automobile tire (in thousands of miles) is...
Normal Distribution. The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with mu = 42 and sigma = 5. What is the probability that a randomly chosen tire has a lifetime greater than 45 thousand miles? For this problem we want just the answer. Please give up to 4 significant decimal places, and use the proper rules of rounding.
23. A mechanic sells a brand of automobile tire that has a life expectancy that is...
23. A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 35,000 miles and a standard deviation of 2800 miles. He wants to give a guarantee for free replacement of tires that don't wear well. How should he word his guarantee if he is willing to replace approximately 10% of the tires?
QUESTION 11 The lifetime of a certain type of automobile tire (in thousands of miles) is...
QUESTION 11 The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with mean N = 43 and standard deviation 0 = 5. What proportion of tires have lifetimes between 40 and 50 thousand miles? O 2.0000 0.3550 1.1935 O 0.6450
15. The tires manufactured by the ABC Tire Company last an average of 42,000 miles with...
15. The tires manufactured by the ABC Tire Company last an average of 42,000 miles with a standard deviation of 7800 miles. If a random sample of 100 the tires, manufactured by the ABC Tire Company is taken, what is the probability that these tires: a) will last more than 41,000 miles? b) will last less than 43,250 miles? c) will last between 41,000 and 43,250 miles?
The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with a mean of 32 and a standard deviation of 4. Round to the second. a) Find the 50 percentile of tire lifetimes. b) Find the tire life that has 70% above it. c) Find the two tire lives that hold the middle 15% Lower Upper d) The tire company wants to guarantee that its tires will last a certain number of miles. What...
The top-selling Red and Voss tire is rated 60000 miles, which means nothing. In fact, the distance the tires can run until wear out is a normally distributed random variable with a mean of 71000 miles and a standard deviation of 5000 miles. a. What is the probability that the tire wears out before 60000 miles? b. What is the probability that a tire lasts more than 81000 miles?
QUESTION 11 The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with mean N = 43 and standard deviation 0 = 5. What proportion of tires have lifetimes between 40 and 50 thousand miles? O 2.0000 0.3550 1.1935 O 0.6450
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