The average amount of time it takes for couples to further communicate with each other after their first date has ended is 3.15 days. Is this average longer for blind dates? A researcher interviewed 57 couples who had recently been on blind dates and found that they averaged 3.5 days to communicate with each other after the date was over. Their standard deviation was 1.245 days. What can be concluded at the the x = 0.05 level of significance? Use the p-value approach. a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Ho v H v