A) Should the experimenter use a one-tailed or two-tailed hypothesis test? Explain your answer.
B) Assuming an alpha level of .05, state your decision about the null hypothesis for the paired sample t-test and explain how you arrived at this decision. Be specific regarding any data used from the SPSS output.
C) Based on the results of the t test and your decision about the null hypothesis in Part B, state your "real world" conclusion about the weight loss for husbands vs. wives.