In a survey of 2000 randomly selected students in Yolo county high schools it was found that 500 of them ride bikes to school. a) Identify the population of interest in the study. All residents of Yolo County All highschool students in Yolo County The 2000 highschool students in Yolo County surveyed The 500 highschool students in Yolo County who ride their bikes b) Identify the sample for this study. The 500 highschool students in Yolo County who ride their bikes All residents of Yolo County All highschool students in Yolo County The 2000 highschool students in Yolo County surveyed c) Can the results of the study can be generalized to the population? Should the findings of the study be used to establish causal relationships. The sample is randomly selected and representative of the entire population, so the results can be generalized to the target population. The sample is not randomly selected and the sampling method appears to intorduce bias, so the results can not be generalized to the target population. Hint:
The population is the collection of all possible respondents.
The sample is the collection of only those respondents who gave a response.
A parameter is a number that describes the population.
A statistic is a number that describes the data.
The variable is the number that is a response to the survey or experiment.
Data refers to all the responses of the survey or the experiment.