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15-03-2024
Mathematics

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A two-sided t-test for a population mean has a null hypothesis of π H₀: μ = 45 π. If a 90 percent t-interval constructed from the same sample data contains the value of 45, which of the following can be concluded?
a) Reject the null hypothesis
b) Fail to reject the null hypothesis
c) The sample mean is significantly different from 45
d) The sample mean is equal to 45

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