## is there evidence that the mean delivery time for the local pizza restaurant is less than the mean delivery time for the national pizza chain?

A local pizza restaurant and a local branch of a national chain are located across the street from campus. The local pizza restaurant advertises that they deliver to the dormitories faster than the national chain. In order to determine whether this advertisement is valid, you and some friends have decided to order 10 pizzas from the local pizza restaurant and 10 pizzas from the national chain. Thus you have matched (paired) samples. For each of the 10 times that pizzas were ordered, you have one measurement from the local pizza restaurant and one from the national chain. The delivery times in minute are show in table: Time 1 2 3 4 5 6 7 8 9 10 Local 16.8 11.7 15.6 16.7 17.5 18.1 14.1 21.8 13.9 20.8 Chain 22.0 15.2 18.7 15.6 20.8 19.5 17.0 19.5 16.5 24.0 At the 0.05 level of significance, is there evidence that the mean delivery time for the local pizza restaurant is less than the mean delivery time for the national pizza chain? (5) What assumption is necessary about the population distribution to perform this test in i) (2)

### What are the multiple correlations of three sets of predictors and overall state of health?

What are the multiple correlations of three sets of predictors and overall state of health? The first set of predictors contains demographic variables (age and years of education). The second….

### What conclusions might you draw from these data?

According to the Death Penalty Information Center, death penalty states record higher murder rates than non-deathpenalty states. On January 1, 2014, the average murder rate among death penalty states was….

### How would you defend these reforms to persons who advocate for tough-on-crime approaches?

The 10-member Colson Task Force on Federal Corrections is composed of Republican and Democrat federal and state congressional leaders, a federal judge, a U.S. attorney, a state warden, a professor,….