STAT231 Quiz: assignment 2 modified copy.pdf
17 Jan 2014
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1: the time until the start of corrosion of a painted panel in a test chamber can be described by a random variable with pdf. Winter 2013: find the mle for , suppose that n =6 and the sample average is 19. 6 days. =15 is a plausible relative likelihood function r( ) evaluated at =15 (to three decimals). value of the parameter . 3+2+2=7 points: suppose that we take a random sample of 20 units from the study population and measure the response variate to get the data y1, y2 ,, y20. We model the sampling by gaussian response model. Yi = + ri,i =1,2,20,ri ~ g(0, : what does represent? (1. 5, the estimate of is. Explain. (1. 5) of has a 2 distribution with 19 degrees of: suppose the estimates of and are 17. 2 and 3. 45 respectively. Find the lower and upper limits of the 90% confidence interval for . (2: assume (d) is true.
