A recent study compared the time spent together by single- and dual- earner couples. According to the records kept by the wives during the study, the mean amount of time spent together watching television among the single-earner couples was 61 minutes per day, with a standard deviation of 15.5 minutes. For the dual-earner couples, the mean number of minutes spent watching television was 48.4 minutes, with a standard deviation of , 18.1 minutes. At the 0.01 significance level, can we conclude that the single-earner couples on average spend more time watching television together? There were 15 single-earner and 12 dual-earner couples studied. Hint: For the calculations, assume the single- earner as the first sample. b. State the decision rule. (Round your answer to 3 decimal places.) The decision rule is to reject HO iftis C. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic