You are studying youghurt bacteria and hypothesise that two samples of yoghurt will have a significantly different mean bacteria count, so you construct the following null and alternative hypotheses:

H0: There is no difference in mean number of bacteria between the two samples.

HA: The mean number of bacteria in each sample is different.

You run a two-sample t-test, and produce a t-value of 1.334. Based on the above hypothesis, which of the following probabilities are you trying to test.

Select one:

a.

P(t > 1.334)

b.

P(t > 1.334) + P(t < -1.334)

c.

P(t < 1.334)

d.

P(t < -1.334)

e.

P(t < 1.334) - P(t < -1.334)