A random sample of 40 observations of a random variable X. and a random sample of 25
Question:
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 sx = 6.3 sy = 7.1
A test is performed at a significance level of a% using the following hypotheses:
H0: µx – µy = 0
H1: µx – µy > 0
Given that H0 is not rejected, find the possible values of α.
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The test statistic for comparing the means of two independent normal populations is ...View the full answer
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Related Book For 
Cambridge International AS & A Level Further Mathematics Coursebook
ISBN: 9781108403375
1st Edition
Authors: Lee Mckelvey, Martin Crozier
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