1nbsp show that for a continuousft ht1o tgt0 is a constant

Assignment Help Basic Statistics
Reference no: EM13371331

(1)  Show that for a continuous

F(t), h(t)=1/O, t>0 is a constant (i.e. not dependent on t) if and only if T follows an exponential distribution (T~EXP(O)

(2)  Show that if T is LOGNOR(μ,σ), then 1/T is LOGNOR(-μ,σ).

(3) The coefficient of skewness, γ3 is a useful scale-free measure of skewness in the distribution of a random variable.

a. Derive an expression for the coefficient of skewness for the Weibull distribution.

b. Compute γ3 for all combination of B = 0.5, 1, 3, 5 and eta = 50, 100.  Also use the computer to draw a graph of the Weibullpdfs for the same combinations of parameters.

c. Explain the effect that changes in η and β have on the shape of the Weibull density and the effect that they have on γ3.

Reference no: EM13371331

Questions Cloud

A sample of data on daily prices of three petrol stations : a sample of data on daily prices of three petrol stations over a two week period have been collected in the table
1select two of the following scenarios explain why you : 1.select two of the following scenarios. explain why you selected each and give an example of how statistics might be
Requirementsthis project requires you to program a : requirementsthis project requires you to program a maze-type game using assembly language. it is not acceptable to use
1 the ordered pair x y is a subset of x y justify your : 1 the ordered pair x y is a subset of x y. justify your
1nbsp show that for a continuousft ht1o tgt0 is a constant : 1nbsp show that for a continuousft ht1o tgt0 is a constant i.e. not dependent on t if and only if t follows an
1a normal distribution y has mean 50 and standard deviation : 1.a normal distribution y has mean 50 and standard deviation 8. find pylt44.2.a normal distribution y has mean 50 and
Review case study - crime and punishmentdisciplining : review case study - crime and punishmentdisciplining employees is perceived generally by supervisors as a difficult and
P140-4q mc12030q for plant 1 mc28010q for plant 2how many : p140-4q mc12030q for plant 1 mc28010q for plant 2how many units should be produced by plant 1 and plant 2 to maximise
Slack chambers and johnston 2010 p 588 highlight : slack chambers and johnston 2010 p. 588 highlight maintenance as one of the approaches to failure prevention. notably

Reviews

Write a Review

Basic Statistics Questions & Answers

  Construct confidence intervals for the given population mean

In order to do so, they review 42 service calls and construct a 95% confidence interval for population mean: (2.468, 2.743). What can we conclude about the significance test of Ho: mu = 2.6 vs Ha: mu does not equal 2.6?

  Decision about replacing old truck

Must the company replace old truck? If so which of new trunks must they use? Describe in detail.

  Find the p-value and value of the test statistic

Consider the following hypothesis test What is the value of the test statistic? What is the p-value? With a=.05, what is your conclusion, reject or accept?

  Self-reported-measured male heights

As part of the National Health and Nutrition Examination Survey, the Department of Health and Human Services obtained self-reported heights and measured heights for males aged 12-16. All measurement is in inches. Listed below are sample results.

  How many dieters be surveyed for true population mean

How many dieters must be surveyed if we want to be 95% confident that the sample mean weight loss is within 0.25 pound of the true population mean? Assume that the population standard deviation is known to be 10.6 lb.

  Probability that cpu demand of program exceed one minute

Program measured in minutes is found to follow a gamma distribution with parameters a=3 and b=2. what is the probability that CPU demand of a program will exceed 1 minute?

  Mean and variance of number of students who watch game

For a sample of 120 students selected at random, what is the mean and variance of the number of students who watch this game?

  What is probability that car drives for at least 10 minutes

Assume that an old used car fails to start 10% of the time. The other 90% of the time it drives for a time period which is uniformly distributed in the interval 20 to 30 minutes. In this interval all subintervals of time of equal width between 20 ..

  Do students at various colleges differ in how sociable they

Do students at various colleges differ in how sociable they are? Twenty-five students were randomly selected from each of three colleges in a particular region and were asked to report on the amount of time they spent socializing each day with other ..

  Hypothesis testing of mean-sleep per night

According to a recent survey, Americans get a mean of 7 hours of sleep per night. A random sample of 50 students at West Virginia University revealed the mean number of hours slept last night was 6 hours and 48 minutes

  Analysis of variance-multivariate statistics

Company W is testing a sales software. Their salesforce of 500 people is divided into four regions: Northeast, Southeast, Central and West. Each sales person is expected to sell the same amount of products.

  What is lawyer-s averages per hour for this week

$240 per hour for hours spent in court, $150 per hour for consultations, and $210 per hour for depositions. What is her averages per hour for this week?

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