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Mathematics, 01.12.2020 17:00 mir1425

Elwin Osbourne, CIO at GFS, Inc., suspects that at least 25% of e-mail messages sent by GFS employees are not business related. A random sample of 300 e-mail messages was selected to test this hypothesis at the 0.01 level of significance. Sixty of the messages were not business related. The appropriate decision is:. a) increase the sample size
b) gather more data
c) maintainstatus quo
d) do not reject the null hypothesis
e) reject the null hypothesis

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Elwin Osbourne, CIO at GFS, Inc., suspects that at least 25% of e-mail messages sent by GFS employee...
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