The people, animals or things on whom experiments are performedĪ study in which data from the past is examinedĪ study in which data is collected without anything being done to the subjectsĮxperimental conditions imposed on the subjectsĪ study in which a treatment is applied and responses are observed In a study, the data you collect is temperature (in F). What is the level of measurement? In a study, the data you collect is Habits on a Always/Sometimes/Never scale. The biologist goes to his 150 favorite hiking places and looks at an acres along each trail. The biologist enters the 15 million acres into a data base and had a computer randomly select 150 of these acres. The biologist goes to 15 diverse locations that have 10 acres each and surveys all 10 acres for each of these 15 locations. The biologist classifies the Sierras into 10 different ecological types and then makes sure that the proportion of each ecological type from the sample is the same as the proportion of that of the population. The biologist orders the 15 million acres by latitude and then surveys every 100000th acre on the list. Whether or not a video is a cat video a/anĭividing the population that contains an equal number of men and women by Gender, and choosing 30 people of each genderĬall every 15th phone number on every 5th page of the phone bookĭividing by population by voting precinct, and sampling everyone in seven of the precincts The percentage of all videos on YouTube that are cat videos is a/an: The 62 milk cows that were observed by the rancher The age when a milk cow first produced milk The average age that all milk cows are when they first produce milk The average age for the 62 observed milk cows as they first produced milk The 32 heart attack patients who were observed by the cardiologist The average recovery time for all heart attack patients that the cardiologist has or will treat The average recovery time for the 32 heart attack patientĪll heart attack patients that the cardiologist has cared for or will care for in the future The recovery time for a heart attack patient The list of all 32 heart attack patients' recovery times The 45 clients from the fitness center who participated in the study The average amount of time that all clients from the fitness center exerciseĪll 45 exercise times there were recorded from the participants in the study The average amount of exercise time for the 45 clients from the fitness center who participated in the study The amount of time that any given client from the fitness center exercises The answer in-state out-of-state or foreign The proportion of all students from this university who are in-state students The proportion of the 300 surveyed students who are in-state students The list of the 300 answers to the survey question The average length of time that all customers will wait before leaving the bank The average length of time that the 25 customers waited before leaving the bank The length of time a customer waits before leaving the bank The 25 customers that the manager observed leave The list of times for the 25 customers who left the bank Based on data, researchers concluded that somewhere between 12% -18% of all female Osprey hatch-lings in the US succeed in growing up to lay their own eggs. 300 female Osprey hatch-lings were tracked until they died or succeeded in laying their own eggs.
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