You and some friends have decided to test the validity of an advertisement by a local pizza restaurant, which says it delivers to the dormitories faster than a local branch of a national chain. both the local pizza restaurant and national chain are located across the street from your college campus. you define the variable of interest as the delivery time, in minutes, from the time the pizza is ordered to when it is delivered. you collect the data by ordering 10 pizzas from the local pizza restaurant and 10 pizzas from the national chain at different times. the hypothesis test to be performed is:

H₁ = The local pizza takes less time than the chain.  

H₀= The local pizza takes more time than the chain.

Step-by-step explanation:

Since you want to know if the advertisement by the local pizza restaurant ("It delivers to the dormitories faster than a local branch of a national chain") is true, the hypothesis to be performed is

H₁ = The local pizza takes less time than the chain.  

H₀= The local pizza takes more time than the chain.

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation: