Labs tested fatigue specimens at two strain ranges

Assignment Help Accounting Basics

Reference no: EM131056426

Fatigue specimens. Three labs tested fatigue specimens at two strain ranges. The failure of a specimen occurs either within or outside the length of the strain gage. According to specimen geometry and engineering theory, the expected fraction of failures within the gage length is po =4/9 for any strain range and lab. The fractions y / n of specimens failing within the gage are tabulated below.

(a) Which of the six observed fractions differ significantly from the theoretical po =4/9?

(b) For Lab 1, do the observed fractions at Strains 1 and 2 differ significantly? For Lab 2? For Lab 3?

(c) For Strain I , do the fractions for the three labs differ significantly? Simultaneously compare ( I ) all three labs and ( 2 ) each pair of labs.

(d) Do (c) for Strain 2.

(e) Pool data from each lab and compare the three labs as in (c).

( f ) State your overall conclusions.

(g) Comment on the adequacy for practical purposes of any approximate tests or confidence intervals you used.

Reference no: EM131056426

Questions Cloud

Schedules for a hypothetical economy : Suppose that the aggregate demand and aggregate supply schedules for a hypothetical economy are as shown in the following table.

What is the significance of these numbers : What is the significance of these numbers? (Converting them to hexadecimal provides a clue.)

Identify a problem within the selected nation culture : Identify a problem within the selected nation's culture. Determine how the political system and the culture affect solutions as well as and the development of policies regarding the identified problem.

Creates corresponding holes in the target file : creates corresponding holes in the target file.

Labs tested fatigue specimens at two strain ranges : Fatigue specimens. Three labs tested fatigue specimens at two strain ranges. The failure of a specimen occurs either within or outside the length of the strain gage.

Economic concerns related to massive debt : Identify some of your economic concerns related to this massive debt. Who do we borrow from? How will we ever pay back this debt? What will have to happen to stop the annual deficits and eventually move to a surplus that could be used to pay ba..

What is the current fair value of the stock to investors : The Storico Company's most recent annual dividend is $2.50 per share. It is expected that Storico's dividend will grow at 13% per year for the next three years and then settle down to 8% per year, indefinitely. What is the current fair value of the s..

Long run neutrality of money : Economists believe in the "Long run neutrality of money"; what does that mean? If monetary policies help in the short run, but do not help in the long run, should we not bother with those policies? What does this tell you about the current moneta..

Circuit breaker use the circuit breaker data : (a) The old design has a known proportion po = 0 . 5 0fa iling by 10,000 cycles. What is the binomial estimate of the proportion of the new design failing by 10,000 cycles, based on the first sample of 18 circuit breakers?

User Account

All Pages