Show all work. 1. Data were collected on the amount spent by 24 customers for lu

Question

Show all work. 1. Data were collected on the amount spent by 24 customers for lunch at a major Houston restau- rant. It was found that the sample mean was $9.50. (a) (2 points) State the population. (b) (2 points) State the sample (c) (2 points) Identify the variable. (d) (2 points) Circle the type of the variable. Qualitative or Quantitative. (e) (2 points) Circle the type of the variable. Discrete or Continuous. (f) (2 points) Does "$9.50" represent a statistic or a parameter? Statistic or Parameter. 2. State the highest level of data measurement that can be justified for each of the following. Use N for nominal, O for ordinal, I for interval, and R for ratio. (a) (2 points) Evaluation of a professor (b) (2 points) Number of pairs of pants you own (c) (2 points) Temperature in a swimming pool in degree Celsius Answer: Answer: Answer: (d) (2 points) Time of your first class this morning Answer: (4 points) For a normal data, the mean, = 12 and standard deviation, -2. what percent- age of data will fall between 10 and 147 Between which two values will 95% of the data lie? What percent of data will be greater than 16? Hint: Use empirical rule. (4 points) What is the difference between a Bar Chart and a Pareto Chart? (8 points) Construct a frequency table including class limits, class boundaries, frequencies and frequencies and then draw a histogram (with five classes) for the data. Is the left skewed, right skewed, or symmetric? cumulative histogram 2 3 5 6 8 10 11 14 15 17 19 21 24 26 28 29 31 33 35 37 37 39

Explanation / Answer

1. Population: All customers come for lunch at major Houston resturant

2. Sample: The 24 chosen customer at major Houston resturant

3. Variable: Amount spent for lunch

4. Quantitative

5. Continuous

6. Statistic

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