Insulating fluid breakdown

Reference no: EM131056414

Insulating fluid breakdown. Use the data in Table 4.1. Combine groups 1 and 2, 3 and 4, and 5 and 6 to get three new groups, each with 20 times to breakdown. Assume that such times have an exponential distribution, and check for stability of the data over time as follows.

(a) Calculate the estimate of the mean for each of the three groups. How many degrees of freedom does each estimate have?

(b) Calculate the pooled estimate of the assumed common mean.

(d) Look up 90 and 95% points of the corresponding chi-square distribution. Do the three sample means differ statistically significantly? If so, why?

(e) Calculate simultaneous approximate 90% confidence limits for all ratios of pairs of the three means. Are any ratios wholly statistically significant?

Table 4.1

Reference no: EM131056414

Questions Cloud

Log data and summary statistics on motor insulation : Motor insulation 2. Use the log data and summary statistics on motor insulation 2 in Table 5.2. The model for such data assumes that time to breakdown has a lognormal distribution at each temperature, that the (log) standard deviation is the same ..

The effects of minimum wages on employment : Read the article "The effects of minimum wages on employment" and answer the questions below: a) Through which channels does a binding minimum wage affect employment? Illustrate this effect with a diagram.

Find the derivative of mips with respect to t : Using Web or Library resources research to find the years of introduction and the processor speeds for both the CPU A and the CPU B. Be sure to cite your creditable resources for these answers. Convert the years introduced to correct values of t a..

Uk unveils levy on sugary drinks : Read the article "UK unveils levy on sugary drinks" and answer the following questions: a) What are the arguments for and against the imposition of such a tax on sugary drink?

Insulating fluid breakdown : Insulating fluid breakdown. Use the data in Table 4.1. Combine groups 1 and 2, 3 and 4, and 5 and 6 to get three new groups, each with 20 times to breakdown. Assume that such times have an exponential distribution, and check for stability of the d..

Play around with prices is a bad idea : Read the article "Play around with prices is a bad idea" and answer the following questions:

Operating at full employment equilibrium : Consider an economy that is operating at full employment equilibrium. Graphically illustrate the effect of an increase in government spending (G) on the price level and the level of GDP in the short run.

Write a program that uses epoll_create() to create an epoll : When, as in this case, epoll_wait() is given an epoll file descriptor with an empty interest list, what happens? Why might this be useful?

Data in the accompanying table show the number of appliances : Circuit board capacitors. Use the data of Table 2.1, but omit the data on board 4. (a) Calculate the pooled estimate of the assumed common value of the binomial proportion.

User Account

All Pages