9 results.
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Question in Content created by Newcastle University
Given a PDF f(x) on the real line with unknown parameter t and three random observations, find log-likelihood and MLE ˆt for t.
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Question in Content created by Newcastle University
Arrivals given by exponential distribution, parameter θ and Y, sample mean on inter-arrival times. Find and calculate unbiased estimator for θ.
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Question in Content created by Newcastle University
For a sample of size n from a normal distribution and given the mean of the sample and the standard deviation of the distribution, find the MLE for the mean. Also the expected information and a confidence interval for the mean.
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Question in Content created by Newcastle University
For a sample of size n from a Poisson distribution Poisson(λ) and given the mean of the sample, find the MLE for λ. Also find the expected information and a confidence interval for λ.
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Question in Content created by Newcastle University
For a sample of size n from an Exponential distribution Exponential(λ) and given the mean of the sample, find the MLE for λ. Also find the expected information and a confidence interval for λ.
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Question in Content created by Newcastle University
For a sample of size n from a normal distribution, given mean of the sample mean and the standard deviation , find the t-statistic corresponding to a null hypothesis μ=m and a given confidence level. Check if the result is significant at this level.
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Question in Content created by Newcastle University
Using a random sample from a population with given mean and variance, find the expectation and variance of three estimators of μ. Unbiased, efficient?
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Question in Content created by Newcastle University
Provided with information on a sample with sample mean and standard deviation, but no information on the population variance, use the t test to either accept or reject a given null hypothesis.
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Question in Content created by Newcastle University
Given two sets of data, sample mean and sample standard deviation, on performance on the same task, make a decision as to whether or not the mean times differ. Population variance not given, so the t test has to be used in conjunction with the pooled sample standard deviation.
Link to use of t tables and p-values in Show steps.