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July 22, 2014

Homework Help: statistik

Posted by mira on Sunday, December 2, 2012 at 6:33am.

can you show me the caculation :)

Last year, 50% of MNM, Inc. employees were female. It is believed that there has been a reduction in the percentage of females in the company. This year, in a random sample of 400 employees, 180 were female.

a.Give the null and the alternative hypotheses.

b.At 95% confidence using the critical value approach, determine if there has been a significant reduction in the proportion of females.

c.Show that the p-value approach results in the same conclusion as that of Part b.

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