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May 29, 2015

Homework Help: stats

Posted by joseph on Wednesday, March 31, 2010 at 1:19pm.

A statistics practitioner wishes to test the following hypothesis: H0 : = 600 against H1 : < 600
A sample of 50 observations yielded the statistics: mean x = 585 and standard deviation sx = 45. The
test statistic of a test to determine whether there is enough evidence at the 10% significance level to reject
the null hypothesis is
(1) 2.3570
(2) 0.3333
(3) 16.6667
(4) 23.570
(5) −2.3570

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