Islands of Adventure contains the Wizarding World of Harry Potter - Hogsmeade, w

Question

Islands of Adventure contains the Wizarding World of Harry Potter - Hogsmeade, which features Harry Potter and the Forbidden Journey. In this attraction, you make your way through familiar classrooms and corridors of Hogwarts School of Witchcraft and Wizardry, then you soar above the castle grounds as you join Harry Potter and his friends on an unforgettably thrilling adventure, coming face-to-face with magical creatures. Of interest is to determine the average wait time for all guests on the Harry Potter and the Forbidden Journey attraction during June 2015. Guests staying at one of the onsite Loews hotels receive one hour early admission to Universal Studios Orlando and Islands of Adventure. Hence, those guests could potentially have shorter wait times for Harry Potter and the Forbidden Journey, and a study was initiated to compare the wait times for those guests staying in onsite Loews hotels to people at the parks who are not staying in those hotels. A random sample of 400 people choosing to experience Harry Potter and the Forbidden Journey are selected, of which 150 are guests of an onsite Loews hotel and 250 are not. For each, the time they waited for the attraction was recorded, and the average wait time for the 150 guests staying at the onsite Loews hotels was compared to the average wait time for the 250 people who are not staying in one of those hotels. As described, is this an example of a controlled experiment or an observational study? (A) Controlled experiment (B) Observational study Consider the information provided in question 12 and the paragraph above question 12. In this scenario, which of the following is the treatment/explanatory variable? (A) Whether the person was male or female. (B) The time the person waited to get on the attraction. (C) Whether the person was from another country or not. (D) Whether the person stayed in an onsite Loews Hotel or not. Consider the information provided in question 12 and the paragraph above question 12. In this scenario, which of the following is the response of interest? (A) Whether the person was male or female. (B) The time the person waited to get on the attraction. (C) Whether the person was from another country or not. (D) Whether the person stayed in an onsite Loews Hotel or not. Guests with a two-park admission ticket can ride the Hogwarts Express to travel from one park to the other. From the train windows, guests see some of the magnificent scenery of London and the British countryside, and encounter characters featured in the films as they travel between London and Hogsmeade. Suppose that on one train there are 354 guests, and the goal is to select a simple random sample of 8 such guests to provide feedback on the experience. Explain in detail what you would do to select a simple random sample of 8 of these guests, and give the numbers of the 8 guests that you would have chosen. The list of numbers below is a row of random digits from a random number table and please start at the far left of that row. Use the procedure illustrated in class.

Explanation / Answer

An observational study only observes the values for comparison , where as a controlled experiment includes performing statisitcal analysis on the dependent and the independent variables , hence this is a controlled experiment

13

In this question the treatment variable is whether the person stayed in onsite Loews hotel or not (D) and

14

the dependent variable is the wait time , as we are trying to measure the average wait time of the person treated by the fact that whether the person stayed in the onsite hotel or not

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