Does a new diet plan help people lose weight? Twenty people were weighed before starting a 3-month diet program and again after they completed the program. The change in weight was found by taking, before weight minus after weight. If the test statistic was 3.45, what is the correct conclusion? O The average weight loss for all people on this plan is 3.45 pounds. We do not have statistically significant evidence that the population mean weight loss was less than zero. We have strong statistically significant evidence to show the population mean weight loss was greater than zero.Do people drive faster if they listen to loud music? Three people drove to work one day with no music and another day with loud music. Their speed was recorded on an open space of road and the data is listed below. Find the value for the multiplier that would be used in a 95% confidence interval. Loud Music No Music Driver 1 35 30 Driver 2 32 30 Driver 3 25 30 O 4.303 3.182 1.960 O 2.576