User Account

All Pages

Distribution of individual failure times

Assignment Help Basic Statistics
Reference no: EM131238597

Suppose that a random sample of 20 power window mechanisms is taken from a lot supplied to an auto manufacturer. Each sampled mechanisms is tested by putting it through continuous up-down cycles until it fails. Suppose that in the entire lot, the mean time to failure is 4200 cycles and that the standard deviation 3400. The mean failure time for the sample is recorded.

Would it be reasonable to assume that the distribution of individual failure times should be roughly normal?

Would it be reasonable to assume that the distribution of sample means should be roughly normal?

Reference no: EM131238597

Questions Cloud

What is the probability distribution of sales : The marketing department of a Firm located in Boardman forecasts that each of the following sales in ($000) is equally likely in a given week: $50, $100, $150, $200, $250, $300. What is the probability distribution of sales (X)?
Estimate both parameters with 95% confidence intervals : Fit both the ZIP and hurdle models, using only an intercept for both the mean and probability portions of the models. In each model, estimate both parameters with 95% confidence intervals and interpret the results.
Probability that one product out performs : Assuming that the products are similar in all respects, what is the probability that one product out performs the other three in each year of a given three year period?
Five consumers with credit cards : Forty-four percent of consumers with credit cards carry balances from month to month. Five consumers with credit cards are randomly selected. What is the probability that all consumers carry a credit card balances?
Distribution of individual failure times : Would it be reasonable to assume that the distribution of individual failure times should be roughly normal? Would it be reasonable to assume that the distribution of sample means should be roughly normal?
What would be the total cost recorded for job-c : Managerial Accounting Determine breakeven total volume of sales and sales volume for each product and determine sales volume and sales revenue for the company to earn Br500,000 profit after 30% profit tax.
Number of times a high school student : Suppose that the number of times a high school student says "like" in a sentence is approximately normally distributed with a mean of 4 and a standard deviation of .5.
Draw the directed graph of relation : Given the set A = {1, 2, 3} and the set S = {(x, y) | x and y in A}. Consider the relation ≤ defined on S as follows: ((x1, y1) ≤ (x2, y2) if x1 ≤ x2 and y1 ≤ y2. Draw the directed graph of this relation. Show that it is a partial order. Explain why ..
Are the observations truly independent : Using the probability from part (c), estimate the probability that the fire station's driveway is at least partially blocked at least once over 60 cycles of the light (roughly one hour). Use the binomial distribution to help answer this problem.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Suppose the reaction temperature x in acircdegc in a

suppose the reaction temperature x in acircdegc in a certain chemical process has a uniform distribution with a -8 and

  One-sixth of the male freshmen entering a large state

one-sixth of the male freshmen entering a large state school are out-of-state students. if the students are assigned at

  Equivalence of two forms of reverse auction

(Equivalence of Two Forms of Reverse Auction) Show that the iteration of the Gauss-Seidel version of the reverse auction algorithm for the (symmetric) assignment problem can equivalently be described by the following iteration, which maintains an ..

  The mampm mars company claims that the percentage of brown

the mampm mars company claims that the percentage of brown mampms they produce is 13. a bag containing 100 mampms was

  Find percent confidence interval for population mean

Each home was 24 and the standard deviation of the sample was 5 people. Develop a 98 percent confidence interval for the population mean.

  Test the research hypothesis that men use the internet more

the gss 2010 measures the amount of hours individuals spend on the internet per week. males use the internet 10.17 hrs

  Questions based on the test for population mean

The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis?

  In a recent survey concerning company sales and net

in a recent survey concerning company sales and net earnings 11 companies responded. data analysis was computed letting

  Any heteroskedasticity and autocorrelation problems

Question 1 A The data set oducat ion. dt a contains data on the years of education of a random sample of 718 Americans. as well as the same information for both of their parents. It is likely that parents' achievements have some predictive power f..

  Necessary sample size to estimate the true proportion

A random sample of 72 statistics students was taken to estimate the proportion of students who are also in the Math Club. The 90% confidence interval was 0.438 to 0.642. Using this information, what sample size would be necessary to estimate the t..

  Explain false negative rate and false positive rate

Explain clearly what is meant by a false negative rate of 5% and a false positive rate of 15%. If the population were screened, what proportion would be expected to test negative for metropathy?

  What is the probability that the average duration is

the duration of alzheimers disease from the onset of symptoms until death ranges from 3 to 20 years with a mean of 8

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd