A researcher conducts a left-tail hypothesis test. Assume that a = 0.05 (5%). The t statistic from a sample of 25 observations is t = -2.11. Based on this information: a) Would the researcher reject...

Extracted text: A researcher conducts a left-tail hypothesis test. Assume that a = 0.05 (5%). The t statistic from a sample of 25 observations is t = -2.11. Based on this information: a) Would the researcher reject or not reject the null hypothesis? b) Assume that the t test statistic remains the same (i.e. t = -2.11). However, if a = 0.01 (1%), that is, a is smaller this time, then would the researcher reject or not reject the null hypothesis? c) So, the smaller the a, the (easier or harder?) it is to reject the null hypothesis, and therefore the (less or more?) trustworthy the conclusion is.