Statistics – All Topics

Identify the population and the sample: A surveyof 787 small-business managers found that 72% are optimistic about the future of their company.
Determine whether the numerical value describes a parameter or a statistic: 19% of a sample of Indiana 9th graders surveyed smoked cigarettes daily.
Determine whether the dataare qualitative or quantitative and explain your answer: The zip codes of a sample of 350 residents of nursing homes.
Identify the data set’s level of measurement and explain your answer: The heights (in inches) of the 2003-04 Chicago Bulls are listed: 82 76 85 77 83 81 79 80 77 75 80 80 81 74 81
Identify which samplingtechnique was used in the study and explain: Lawenforcement officials use a radar gun to measure the speed of every tenth vehicle on an interstate.

(1) Sample = The 787 small-business managers who were …

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