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Questions › IIT JAM › IIT JAM 2024 › Q56
2 marksStatistics › Point and interval estimation › Maximum likelihood estimationModerateabout 2 min

IIT JAM 2024 Question 56: Point and interval estimation

Let a random sample from a normal distribution with mean 555 and unknown standard deviation σ\sigmaσ be 4.8,4.5,5.1,5.2,5.3,5.54.8, 4.5, 5.1, 5.2, 5.3, 5.54.8,4.5,5.1,5.2,5.3,5.5. The maximum likelihood estimate of σ2\sigma^2σ2 is ________ (rounded off to two decimal places).

Answer and worked solution

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Plain-text version

Let a random sample from a normal distribution with mean 5 and unknown standard deviation σ be 4.8, 4.5, 5.1, 5.2, 5.3, 5.5. The maximum likelihood estimate of σ² is (rounded off to two decimal places).

Also written as: Let a random sample from a normal distribution with mean 5 and unknown standard deviation sigma be 4.8, 4.5, 5.1, 5.2, 5.3, 5.5. The maximum likelihood estimate of sigma^2 is (rounded off to two decimal places).

Point and interval estimation has come up 28 times in 6 exams since 2008.

What this question tests

This question is on Maximum likelihood estimation, part of Point and interval estimation in Statistics.

Choosing the parameter value that makes the data most likely.

TestStop has 5 past-paper questions on this subtopic; the nearest in year are below.

  • IIT JAM 2021 · Q16Let X be uniform on [a, b]. A sample of size five is {1.3, 0.8, 9.5, 20.2, 8.2}. The Maximum Likelihood…
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Question from the IIT JAM 2024 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.