1.13 relaxing after work: the 2010 general social survey asked the question, \after an average work day…

1.13 relaxing after work: the 2010 general social survey asked the question, \after an average work day, about how many hours do you have to relax or pursue activities that you enjoy?\ to a random sample of 1,155 americans. the average relaxing time was found to be 1.65 hours. determine which of the following is an observation, a variable, a sample statistic, or a population parameter.\na) an american in the sample.\npopulation parameter\nobservation\nsample statistic\nvariable\nb) number of hours spent relaxing after an average work day.\nsample statistic\nvariable\nobservation\npopulation parameter\nc) 1.65.\nsample statistic\nobservation\npopulation parameter\nvariable\nd) average number of hours all americans spend relaxing after an average work day.\nobservation\nvariable\nsample statistic

1.13 relaxing after work: the 2010 general social survey asked the question, \after an average work day, about how many hours do you have to relax or pursue activities that you enjoy?\ to a random sample of 1,155 americans. the average relaxing time was found to be 1.65 hours. determine which of the following is an observation, a variable, a sample statistic, or a population parameter.\na) an american in the sample.\npopulation parameter\nobservation\nsample statistic\nvariable\nb) number of hours spent relaxing after an average work day.\nsample statistic\nvariable\nobservation\npopulation parameter\nc) 1.65.\nsample statistic\nobservation\npopulation parameter\nvariable\nd) average number of hours all americans spend relaxing after an average work day.\nobservation\nvariable\nsample statistic

Answer

Brief Explanations:

  • a) An American in the sample is an individual unit being studied, which is an observation.
  • b) The number of hours spent relaxing after an average work - day is what is being measured for each individual, so it is a variable.
  • c) 1.65 is the average of the sample data, so it is a sample statistic.
  • d) The average number of hours all Americans spend relaxing after an average work day is a characteristic of the entire population, so it is a population parameter.

Answer:

a) observation b) variable c) sample statistic d) population parameter