1. Identify the population, parameter, sample, and statistic in the following situation: A restaurant specializes in hamburgers. You come to the store and buy 5 randomly selected hamburgers and find that the mean weight of your 5 hamburgers is 7.6 ounces. Population: Parameter: Sample: Statistic: Use the dotplot and information to answer the next three questions: Suppose the restaurant claims its hamburgers have a mean weight of 8 ounces. The dotplot below shows the distribution of sample means from 100 simulated SRSs of size n = 5 from a normally distributed population with u = 8 ounces and o = 0.54 ounces. 75 7.6 77 78 79 8 8.1 82 83 8.4 8.5 Simulated sample mean Mean weight, oz. 2. There is one dot on the graph at 8.4, explain what this dot represents. 3. Would it be unusual to get a sample mean of 7.6 oz or less in a sample of size n = 5 from this population? Explain. 4. Based on your answer to number 3, is there convincing evidence that the mean weight of hamburgers at this restaurant is less than 8 oz? Explain