MATH 534 Week 1 Addendum; Homework-Quiz Review
1. Question: Is each item below an example of descriptive or inferential statistics? 2. Question: In each case, identify the type of data (or level of data): 3. Question: For the following frequency distribution: 4. Question: Assuming that the dataset 17, 15, 3, 22, 11, 7, 9 is a sample. 5. Question: The amount of time it takes a person to get ready for work has a bell shaped distribution. The average is 45 minutes and the standard deviation is 10 minutes. 6. Question: The range of a given dataset is 17.2, if 6 classes are used to construct a frequency distribution, what is width of each class approximately? 7. Question: According to the Pareto chart below, what is the second most common type of document complaint? 8. Question: Consider the relative frequency distribution given below: 9. Question: The staff of Mr. Wayne Wertz, VP of Operations at Portland Peoples Bank, prepared a frequency histogram of waiting time for drive up ATM customers. 10. Question: We want to study the satisfaction level of a local cable company’s customers. The cable company supplies a list of all of their 1973 customers. We send a survey to all of them. For this study, is the group being sampled a sample or a population? 11. Question: We are given the following ages of people in a company 12. Question: Given the following graphing a frequency distribution of exam grades: 13. Question: Q1, Q2, and Q3 for ages of 1300 people living in a small town are 27.2, 57.3, 71.1. From this we can conclude that _______% of the people have an age of 71.1 or less.
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