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the sample comes from a population of tires with 60000 miles where 5% of tires are worn out,
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A tire manufacturer has a 60,000 mile warranty for tread life. The manufacturer considers the overall...
A tire manufacturer has a 60,000 mile warranty for tread life. The Select one answer manufacturer...
A tire manufacturer has a 60,000 mile warranty for tread life. The Select one answer manufacturer considers the overall tire quality to be acceptable if less than 5% 10 points are worn out at 60,000 miles. The manufacturer tests 250 tires that have been used for 60,000 miles. They find that 3.6% of them are worn out. With this data, we test the following hypotheses. H : The proportion of tires that are worn out after 60,000 miles is equal...
I do rate all my replies Question 2 of 5 The makers of Mini-Oats cereal have...
I do rate all my replies
Question 2 of 5 The makers of Mini-Oats cereal have an automated packaging machine that is set to fill boxes with 24 ounces of cereal. At various times in the packaging process, we select a random sample of 100 boxes to see whether or not the machine is filling the boxes with an average of 24 ounces of cereal. Which of the following is a statement of the null hypothesis? The machine fills the...
1. An automobile tire manufacturer would like to claim that the tread life (in miles) of...
1. An automobile tire manufacturer would like to claim that the tread life (in miles) of a certain type of tire is greater than 30,000 miles. Assuming a normal population with 1500 miles answer the following for a test of the hypotheses Ho :-30,000 versus Ha : μ > 30,000 a) Ifa -.01 specify the rejection region as an inequality involving the value of the test statistic b) Based on a sample size of n 25, the corresponding rejection region...
A tire manufacturer believes that the tread life of its snow tires can be described by...
A tire manufacturer believes that the tread life of its snow tires can be described by a normal model with a mean of 32,000 miles and a standard deviation of 2500 miles. Now, assume we took a sample of 26 tires. Find the probability that the tires will last an average of more than 33,500 miles. Round to three decimals.
Suppose you work at a large tire distribution center. The tires' average tread life has been...
Suppose you work at a large tire distribution center. The tires' average tread life has been 50,000 miles with a standard deviation of 5,000 miles At the end of the year, the company can reevaluate their supply contract. There are four supply options for the next contract the current supplier or one of three competitors The current supplier produces tires with an average tread life of 50,000 miles with a standard deviation of 5,000 miles Competitor A claims to produce...
The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire...
The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60000 miles. Assume the mileage wear follows the normal distribution and the standard deviation of the distribution is 5000 miles. Crosset Truck Company bought 48 tires and found that the mean mileage for its trucks is 59500 miles. Is Crosset’s experience different from that claimed by the manufacturer at the 0.05 significance level? For this...
The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire...
The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles. Assume the mileage wear follows the normal distribution and the standard deviation of the distribution is 5,000 miles. Crosset Truck Company bought 48 tires and found that the mean mileage for its trucks is 59,500 miles. Crosset would like to know if their experience is different from the manufacturer’s claim. State the null...
A research engineer for a tire manufacturer is investigating tire life for a new rubber compound...
A research engineer for a tire manufacturer is investigating tire life for a new rubber compound and has built 16 tires and tested them to end-of-life in a road test. The sample mean and standard deviation are 60139.7 and 3645.94 kilometers. The engineer would like to demonstrate that the mean life of this new tire is in excess of 60,000 kilometers. Formulate and test appropriate hypotheses, and draw conclusions using a = 0.05.
Gladiator USA, a tire manufacturer, guarantees its tires against defects for five years or 60,000 miles,...
Gladiator USA, a tire manufacturer, guarantees its tires against defects for five years or 60,000 miles, whichever comes first. Suppose Gladiator USA can expect warranty costs during the five-year period to add up to 5% of sales. Assume that a Gladiator USA dealer in Denver, Colorado, made sales of $ 643,000 during 2018. Gladiator USA received cash for 15% of the sales and took notes receivable for the remainder. Payments to satisfy customer warranty claims totaled $ 20,000 during 2018....
The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 1600 miles
The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 1600 miles. What is the probability a randomly selected tire of this brand will last between 56,640 miles and 57,120 miles? i cant seem to figure this out or even know where to begin!... i would be so,so,so greatful if someone would point me in the right direction and at...
A tire manufacturer has a 60,000 mile warranty for tread life. The Select one answer manufacturer considers the overall tire quality to be acceptable if less than 5% 10 points are worn out at 60,000 miles. The manufacturer tests 250 tires that have been used for 60,000 miles. They find that 3.6% of them are worn out. With this data, we test the following hypotheses. H : The proportion of tires that are worn out after 60,000 miles is equal...
I do rate all my replies
Question 2 of 5 The makers of Mini-Oats cereal have an automated packaging machine that is set to fill boxes with 24 ounces of cereal. At various times in the packaging process, we select a random sample of 100 boxes to see whether or not the machine is filling the boxes with an average of 24 ounces of cereal. Which of the following is a statement of the null hypothesis? The machine fills the...
1. An automobile tire manufacturer would like to claim that the tread life (in miles) of a certain type of tire is greater than 30,000 miles. Assuming a normal population with 1500 miles answer the following for a test of the hypotheses Ho :-30,000 versus Ha : μ > 30,000 a) Ifa -.01 specify the rejection region as an inequality involving the value of the test statistic b) Based on a sample size of n 25, the corresponding rejection region...
Suppose you work at a large tire distribution center. The tires' average tread life has been 50,000 miles with a standard deviation of 5,000 miles At the end of the year, the company can reevaluate their supply contract. There are four supply options for the next contract the current supplier or one of three competitors The current supplier produces tires with an average tread life of 50,000 miles with a standard deviation of 5,000 miles Competitor A claims to produce...
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