MATH 1342 Name Elementary Statistical Methods Lab Ch.1!) - Inferential Statistics One Sample Critical Thinking; Communication Skills; Empiricathuantitative Skills Just like in Lab Chapter 9, you are still the manager of Speedy Oil Change and are still dealing with the customer complaints about oil change wait times. Last lab, you presented statistical evidence in the form of condence intervals. In this lab, you want to use a hypothesis test to support your claim to upper management that your team is meeting the company's advertised claim that customers can get their car's oil changed in less than 30 minutes on average. (Back story from last lab: Suppose you are the manager of Speedy Oil Change which claims that it will change the oil in customers' cars in less than 30 minutes on average. Further suppose that several complaints have been filed from customers stating that their oil change took longer than 30 minutes. Upper-level management at Speedy Oil Change headquarters has requested that you investigate the complaints. To begin your investigation, you randomly audit 36 oil changes performed by Speedy Oil Change and record the time each customer waited for the oil change. The number of minutes to complete each of the 36 oil changes is reported below.) In the questions below, you will test if the mean is significantly less than 30 minutes at a signicance level of 0.01. 1. List the requirements (i.e. assumptions) for this hypothesis test and state whether each of the requirements been met. (Hint: There are two tests we 've iearned so far: to. 2 {hypothesis testing for a popuiation proportion) or 10.3 (hypothesis testing for a popuiation mean) is this scenario asking about a proportion or mean ?] 2. Write the null and alternative hypothesis