Obtaining independent parameter estimates

Assignment Help Basic Statistics

Reference no: EM131001558

Padgett and Spurrier (1990)8 obtained the following data set for the breaking strengths (in GPa) of carbon ?bers used in making composite materials.

1.4	3.7	3.0	1.4	1.0	2.8	4.9	3.7	1.8	1.6
3.2	1.6	0.8	5.6	1.7	1.6	2.0	1.2	1.1	1.7
2.2	1.2	5.1	2.5	1.2	3.5	2.2	1.7	1.3	4.4
1.8	0.4	3.7	2.5	0.9	1.6	2.8	4.7	2.0	1.8
1.6	1.1	2.0	1.6	2.1	1.9	2.9	2.8	2.1	3.7

(i) In their analysis, Padgett and Spurrier postulated a Weibull W (ζ, β) distribu- tion model with parameters ζ = 2.0 and β = 2.5 for the phenomenon in question. Validate this model assumption by carrying out an appropriate test.

(ii) Had the model parameters not been given, so that their values must be determined from the data, repeat the test in (i) and compare the results. What does this imply about the importance of obtaining independent parameter estimates before carrying out probability model validation tests?

Reference no: EM131001558

Questions Cloud

Briefly explain the difference between the income statement : Briefly explain the difference between the income statement approach and the balance sheet approach to estimating bad debts.

Article on yarnell hill fire : Article on Yarnell Hill Fire, 2013. Looks at what happened to the Granite Mountain hotshot crew and seeks to explain why they died. No limited word, check spelling, default font.

Find a definition of direct mail : The AIDA formula, a widely used marketing tool, can help you structure your oral presentations and written communication. You'll find a definition of direct mail on pages 19 and 20 of "Marketing and Promotion."

Summarize and critique issues to provide recommendation : Now you have the opportunity to analyze what has been discussed and to provide your critical analysis of the contemporary research. You have already identified organizations facing issues. In a paper, summarize and critique their issues to provide re..

Obtaining independent parameter estimates : Had the model parameters not been given, so that their values must be determined from the data, repeat the test in (i) and compare the results. What does this imply about the importance of obtaining independent parameter estimates before carrying ..

When is it permissible to record bad debt expense : When is it permissible to record bad debt expense only at the time when receivables actually prove uncollectible?

Define the term culture jamming : Define the term "Culture Jamming". Visit Adbusters (http://www.adbusters.org/), and share your impressions of the website. Then, explain how advertising can act as a form of cultural imperialism

Explain the primary functions of internal controls procedure : Explain the primary functions of internal controls procedures in the accounting area. What is meant by separation of duties?

Calculate fz for all nonnegative values of z : Moreover, you are given that e-Nδ = 0.36. If Z is the present value of the benefits, calculate FZ (z) for all nonnegative values of z.

User Account

All Pages