Parameters are numbers that summarize data for an entire population.
Statistics are numbers that summarize data from a sample, i.e. some subset of the entire population.
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A company has developed a new phone battery whose average lifetime is unknown. In order to estimate this average, 100 phone batteries are randomly selected from a large production line and tested; their average lifetime is found to be 15 hours. The 15 hours represents a:
A study is under way to determine the average height of all 32,000 adult pine trees in a certain national forest. The heights of 500 randomly selected adult pine trees are measured and analyzed. The parameter in the study is:
in question 1 on the quiz, I thought it was statistic because the population of NY was a sample and then the average age was statistic…. I get that we got parameter but how.
But the POPULATION of New York is not a sample. It is a population. Therefore, any characteristics that we measure from this population is a parameter.
You may be thinking that New York voters do not make up the entire population of the USA, but we are not focusing on all of the USA here… Only a very specific group: voters in NY. If we include all of the people that fit this description, then it is a population.