Question on exponential lifetimes

Assignment Help Basic Statistics
Reference no: EM132845346

Exponential Lifetimes.

A lifetime X (in years) of a particular device is modeled by an exponential distribution With unknown rate parameter 9. The lifetimes of X1 : 5, X2 : 6, and X3 : 4 are observed. Assume that an expert familiar with this type of devices suggested that 9 has exponential distribution with mean 3. (a) For the prior suggested by the expert, ?nd the posterior. (b) What are the mean and variance of the posterior.

Reference no: EM132845346

Questions Cloud

What would it cost of equity be : What would it cost of equity be if it took on the average amount of debt for its industry at a cost of debt of 5.6%?
Show the dramatic transformation of the united states : How does the theme you chose show the dramatic transformation of the United States and how Americans view their country?
Construct the confidence interval for the population mean : Assume the population standard deviation is 0.78. Construct the confidence interval for the population mean, µ, if c = 0.98.
What amount should be reported as doubtful accounts : Allowance for doubtful accounts, January 1 - 250,000. What amount should be reported as doubtful accounts expense for the current year
Question on exponential lifetimes : A lifetime X (in years) of a particular device is modeled by an exponential distribution With unknown rate parameter 9. The lifetimes of X1 : 5, X2
What is the bullet acceleration : A force of 3.8 N is exerted on a 5.0 g rifle bullet. What is the bullet's acceleration?
How much is the realized profit to be allocated : During the year, Marie reported net income of P215,000 and Paz reported net income of P140,000. How much is the realized profit to be allocated
What is the bullet acceleration : A force of 3.8 N is exerted on a 5.0 g rifle bullet. What is the bullet's acceleration?
How debates about the role of women in society has changed : In at least six sentences, discuss how debates about the role of women in society has changed over time (from World War II to the early 2000s).

Reviews

Write a Review

Basic Statistics Questions & Answers

  Construct a cross-tabulation describing the cities

Construct a cross-tabulation describing the cities, using grade on financial management and grade on information technology as the categorization variables.

  Federal deficit and federal debt

What are the differences between the Federal deficit and Federal Debt?

  A city ballot includes a local initiative that would

a city ballot includes a local initiative that would legalize gambling. the issue is hotly contested and two groups

  How much on average per tire will the warranty cost

The company offers a warranty. The warranty costs $8 per tire returned. If the company sets the warranty miles at 67000, how much on average per tire will the warranty cost?

  Individual treasury bond from population

The Wall Street Journal reported that long term Treasury bonds had a mean return of 24.03% in 2008. Assume that the returns for the long term Treasury bonds were distributed as a normal random variable, with a mean of 24.03 and a standard deviatio..

  A random sample of discount prices gives the following

the mean price to buy two of the medicines was 267.00 in 2006. a random sample of discount prices gives the following

  What is the probability that a five-card hand is a straight

How many five-card hands chosen from a standard deck of playing cards consist of five cards in a row.

  Finding hypotheses for statistics

A sample of 20 is taken, resulting in a mean of 16.45 and standard deviation of 3.59. Assume that x is normally distributed and used alpha of 0.5 to test hypotheses.

  Random and without replaement from a deck

Two cards are drawn at random and without replaement froma deck of 52 cards. Show rigorously that the probablility that the second card is a Jack is 4/52.

  Concentration of naphthalene in the sediment

Use the Wilcoxon rank-sum test to determine whether there is any evidence to suggest a difference in the concentration of naphthalene in the sediment.

  Find the probability that the sample mean would be less

if y has a normal distribution with a mean of 32 and a standard deviation of 12 and you take samples of size 9 the

  Identifying the null and alternative hypotheses

Then test to see whether it considerably varies from 0 [use alpha = 5%]. Don't forget to identify the null and alternative hypotheses.

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!

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