Question

Assume that we collect a sample of 30 observations and compute the following sample statistics: the...

Assume that we collect a sample of 30 observations and compute the following sample statistics: the sample average = 55; the sample standard deviation =15.

Please conduct a test with alpha equal to 20% and the null hypothesis that the population mean is 60. What is the conclusion of this test?

a)

the test rejects the null hypothesis

b)

the test fails to reject the null hypothesis

c)

not enough information is provided to conduct the test

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