Math 224 Elementary Statistics s1

STATISTICS – LAB #1

Statistical Concepts

 Data Collection via a Survey  Branches of Statistics  Sampling  Types of Data  Levels of Measurement

Collecting Data

Complete the attached survey to the best of your ability. Since the data will be compiled for the class and used throughout the term, it is important for the collected data to be accurate. The identity of each student will not be included in the data set. The class data set will be available on my web page and public account. STUDENT SURVEY

(1) How many minutes on average does it take you to drive to UK from your home?

(2) What state (or country if not from United States) were you born?

(3) What year did you (or expect to) graduate with your bachelor’s degree?

(4) Rank all of the courses you are currently taking. The class you look most forward to taking will be ranked one, next two, and so on. What is the rank assigned to this class?

(5) What is your height to the nearest inch?

(6) What is your shoe size?

(7) How many hours did you sleep last night?

(8) What is your gender?

(9) What is your race?

(10) What color of car do you drive?

(11) How many hours (on average) do you spend a day watching TV?

(12) How much money do you have in your pocket right now?

(13) Flip a coin 10 times. How many times did you get tails?

(14) Roll a die 10 times and record the results below. SHORT ANSWER WRITING ASSIGNMENT

Answers should be complete sentences. Place the assignment in your lab portfolio.

1. Suppose we use this survey to characterize the students in this class by organizing, summarizing, and displaying the data. This would be an example of what branch of statistics? Explain your reasoning.

2. Suppose we use this survey to draw conclusions about a population (the student body at UK) based on a sample (this class). This would be an example of what branch of statistics? Explain your reasoning.

3. Will the data collected from this survey represent a simple random sample of the UK student body? Explain your reasoning.

4. What type of data will the following questions yield (Explain your reasoning):

a. Survey question 1?

b. Survey question 2? 5. Will the result for survey question 1 be a discrete or continuous variable? Explain your reasoning.

6. Identify the level of measurement for the following (Explain your reasoning):

a. Survey question 1?

b. Survey question 2?

c. Survey question 3?

d. Survey question 4?

7. Comment on the strengths and weaknesses of this survey. Include discussion on the sample, method of collection, and variables.