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 .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.
(1) This is a (Click to select)onetwo-tailed test.
(2) The decision rule is to reject if t is (greater than, equal to, less than)(Round your answer to 3 decimal places.)
(3) The test statistic is t?
(4) What is your decision regarding ? Reject or Do not reject.