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In testing a research hypothesis that the population mean for group 1 is smaller than group...

In testing a research hypothesis that the population mean for group 1 is smaller than group 2, the data do indeed yield a sample mean for group 1 that is smaller than group 2. Given the test statistic value of -0.380 with 3,555 degrees of freedom, what is the P-value? (Answer as a probability, not a percent. Record your answer accurate to at least the nearest THIRD decimal place with standard rounding.)

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Answer #1

This is left tailed hypothesis test for t-statistic

test statistic, t = -0.380
degrees of freedom, df = 3555

p-value = P(t < -0.38) = 0.352

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