A random sample of 40 observations of a random variable X. and a random sample of 25

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A random sample of 40 observations of a random variable X. and a random sample of 25 observations of a random variable Y. are taken. The sample means and unbiased estimates are:

x̅ = 13.6 y̅ = 11.2 s_x = 6.3 s_y = 7.1

A test is performed at a significance level of a% using the following hypotheses:

H₀: µ_x – µ_y = 0

H₁: µ_x – µ_y > 0

Given that H₀ is not rejected, find the possible values of α.

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Cambridge International AS & A Level Further Mathematics Coursebook

ISBN: 9781108403375

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Authors: Lee Mckelvey, Martin Crozier

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Question Posted: Oct 06, 2021 12:46 AM

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A random sample of 40 observations of a random variable X. and a random sample of 25

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Cambridge International AS & A Level Further Mathematics Coursebook

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