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aev [14]
3 years ago
12

Twenty motors were put on test under a high-temperature setting. The lifetimes in hours of the motors under these conditions are

given below. Suppose we assume that the lifetime of a randomly selected motor under these conditions, X, has a Gamma (1, theta) distribution.
(a) Derive the maximum likelihood estimate of 9 and evaluate it numerically.
(b) Obtain the sample median of the data, which is an estimate of the median lifetime of a motor. What parameter is it estimating (i.e., determine the median of X)?
(c) Based on the mle, what is another estimate of the median of X?
(d) Obtain a large sample approximate 95% confidence interval for the mean lifetime of a motor.

Mathematics
1 answer:
natta225 [31]3 years ago
3 0

Answer:

Step-by-step explanation:

The step by step explanation is given in the attached document.

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