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To test H0:μ=20 versus H1;μ=less than 20​, a simple random sample of size n=16 is obtained...

To test H0:μ=20 versus H1;μ=less than 20​, a simple random sample of size n=16 is obtained from a population that is known to be normally distributed..

If x-bar=18.1 and s=4.2​, compute the test statistic.

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Answer #1

13?__ _134 13! 5! (13-15)! 5 Ho: M = 20, Vs Hi: u 220 n = 16, = 18.1, S = 4.2 The test The statistic t= test - %-M statistic

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