Question

you are deciding between two different brands of tires and discover that brand a tires have...

you are deciding between two different brands of tires and discover that brand a tires have a mean lifetime of 60000 miles with a standard deviation of 2500 miles brand bs tires have a mean lifetime of 60000 miles with a standard deviation of 10000 miles which brand would you choose and why

Homework Answers

Answer #1

please like.

Thank you.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Tires: a tire manufacturer believes that the tredlife of its snow tires can be described by...
Tires: a tire manufacturer believes that the tredlife of its snow tires can be described by a normal model with a mean of 32,000 miles and standard deviation of 2500 miles a. if you buy one of these tires, would it be reasonable for you to hope it will last 40,000 miles and why? b. aprox. what fraction of these tires can be expected to last less than 30,000 miles c. aprox what fraction of these tires can be expected...
You measure the lifetime of a random sample of 64 tires of a certain brand. The...
You measure the lifetime of a random sample of 64 tires of a certain brand. The sample mean is ?¯=50 months. Suppose that the lifetimes for tires of this brand follow a Normal distribution, with unknown mean ? and standard deviation ?=5 months, then a 99% confidence interval for ? is: A) 48.78 to 51.22. B) 49.8 to 50.2. C) 40.2 to 59.8. D) 48.39 to 51.61.
A lifetime of certain brand of tires is normally distributed with the mean of 80, 000...
A lifetime of certain brand of tires is normally distributed with the mean of 80, 000 kilometers and a standard deviation of 6000 kilometers. a. Probability that a randomly selected tire will have lifetime 70,000 kilometers or more is __________ b. The percent of tires with lifetimes between 65, 000 kilometers and 85, 000 kilometers is ______________ c. The manufacturer of tires wants to establish the warranty on the tires. He wants to replace for free only 4% of the...
A taxi company is trying to decide whether to purchase brand A or brand B tires...
A taxi company is trying to decide whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the difference in the two​ brands, an experiment is conducted using 15 of each brand. The tires are run until they wear out. The sample average and standard deviation in kms for brand A are 35,400 and 4000 respectively. The sample average and standard deviation in kms for brand B are 37,800 and 6600 respectively. Compute a...
You are interested in determining which of two brands of batteries, brand A and brand B,...
You are interested in determining which of two brands of batteries, brand A and brand B, lasts longer under differing conditions of use. One hundred Fenix flashlights are fitted with brand A batteries and 100 Olight flashlights are fitted with brand B batteries. Each battery is used for 72 hours straight. The battery life is then measured for each battery, and the average battery life for the two brands is compared. What is wrong with this experimental design? (3 points)...
1. A taste test is conducted between two brands of diet cola, Brand A and Brand...
1. A taste test is conducted between two brands of diet cola, Brand A and Brand B, to determine if there is evidence that more people prefer Brand A. A total of 100 people participate in the taste test. a. If people prefer Brand A and Brand B equally, what proportion of the taste test participants would we expect to choose Brand A? b. Define the relevant parameter(s) (that is, describe in words with proper notation) and then state the...
A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before...
A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needs to be replaced. From past studies of this tire, the standard deviation is known to be 8,000. A survey of owners of that tire design is conducted. Of the 29 tires surveyed, the mean lifespan was 46,600 miles with a standard deviation of 9,800 miles. Using alpha = 0.05, is the data highly consistent with the claim? Note: If you are using...
Three different brands of car batteries, each having a 42 month warranty, were included in a...
Three different brands of car batteries, each having a 42 month warranty, were included in a study of battery lifetime. A random sample of batteries of each brand was selected, and lifetime, in months, was determined. An analysis of variance was conducted and the p-value was 0.053. The hypothesis that all mean lifetimes are the same was retained at the 5% level. Multiple comparisons of the means were also carried out with the following (somewhat contradictory) findings: The Tukey's 95%...
A manufacturer claims that the life span of its tires is 48,000 miles. You work for...
A manufacturer claims that the life span of its tires is 48,000 miles. You work for a consumer protection agency and you are testing these tires. Assume the life spans of the tires are normally distributed. You select one hundred tires at random and test them. The mean life span is 47,858 miles. Assume sigmaσequals=900 Complete parts​ (a) through​ (c). ​(a) Assuming the​ manufacturer's claim is​ correct, what is the probability that the mean of the sample is 47,858 miles...
name a brand to which you are brand loyal and name a product category that you...
name a brand to which you are brand loyal and name a product category that you switch brands frequently. Why do you exhibit different behavior in these two product categories?