Please help with this question

Which way of dispensing champagne, the traditional vertical method or a slanted beer-like pour, preserves more of the tiny gas bubbles that improve flavor and aroma? The following data was reported in an article. Carry out a test to decide whether true average CO2 loss for the traditional pour is larger than for the slanted pour. Assume the samples come from normal populations. Type of Pour Average Standard deviation Traditional (T) 6 4.2 0.4 Slanted (S) 6 3.9 0.3 Difference (d = T - S) 6 0.3 0.3 (a) What are the null and alternative hypotheses? Ho: UT - US + = # 0 $ HA: HT - US + 0 (b) What are the test statistic and degrees of freedom (use complex of if not assuming equal variances)? (Round your answer to 3 decimal places, if needed.) of = (Round your answer to 3 decimal places, if needed.)