A survey of 385 people who like wild sweaters found that 74% had a wild holiday sweater. What is the population and what is the sample?
Question 1 (CO 1) A survey of 385 people who like wild sweaters found that 74% had a wild holiday sweater. What is the population and what is the sample?
Population: people who like wild sweaters; Sample: the 74% that had a wild holiday sweater
Population: people who like wild sweaters: Sample: the 385 people who had a wild holiday sweater
Population: people who like wild sweaters; Sample: the 385 people who like wild sweaters
Population: people who like sweaters; Sample: the 74% that had a wild holiday sweater
Question 2 (CO 1) A survey of 481 of your customers shows that 79% of them like the recent changes to the product. Is this percentage a parameter or a statistic and why?
Parameter as it represents the population
Statistic as it represents the population !
Statistic as it represents the sample
Parameter as it represents the sample
Question 3 (CO 1) Classify the data of the top grossing movies for 2017.
Classical
Statistics
Quantitative
Qualitative
Question 4 (CO 1) The data set that lists the runs scored at each of the weekend’s baseball games would be classified as what type of data?
Interval
Ratio
Nominal
Ordinal
Question 5 (CO 1) A data set that includes the years in which your hometown team won championships would be classified as what type of data:
Ratio
Ordinal
Interval
Nominal
Question 6 (CO 1) What type of data collection might be best to estimate the amount of time individuals spend socializing?
Observational
Survey
Simulation
Experiment
Question 7 (CO 1) What type of data collection might be best to study the effect of car crashes on humans?
Simulation
Survey
Observational
Experiment
Question 8 (CO 1) You need to study the satisfaction of customers of a specific restaurant. You decide to randomly select one customer at each table. This would most closely describe which type of sampling technique?
Systematic
Cluster
Stratified
Random
Question 9 (CO 1) Which of the following graphs would be a histogram?
Vertical bars with various lengths
Horizontal bars with various lengths
Line moving up and down with area underneath shaded in
Circle with different colored slices throughout
Question 10 (CO 1) In a normally distributed data set of how long customers stay in your store, the mean is 43.5 minutes and the standard deviation is 3.9 minutes. Within what range would you expect 95% of your customers to stay in your store?
31.8-55.2
35.7-51.3
42.5-44.5
39.6-47.4
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