Question

Population Parameters and Sample Statistics: Determine whether the value being discussed is a population parameter or sample statistic: a) 20% of all vehicles sold are compact cars. b) 61.4% of voters turned out for the 2016 elections. c) Usins Consumer ReDorts, a random sample of new cars gave an average of mpg 30.5. d) In a recent sample of 250 people, it was found that 25% do not bathe everyday.

Answer 1

The values discussed are either population parameters or sample statistics, depending on whether they represent characteristics of the entire population or specific samples.

Step-by-step explanation:

In this question, we need to determine whether the value being discussed is a population parameter or a sample statistic.

a) 20% of all vehicles sold are compact cars - This is a population parameter because it represents a characteristic of the entire population of all vehicles sold.

b) 61.4% of voters turned out for the 2016 elections - This is a sample statistic because it is based on a specific sample of voters in the 2016 elections.

c) Using Consumer Reports, a random sample of new cars gave an average of 30.5 mpg - This is a sample statistic because it is based on a specific sample of new cars.

d) In a recent sample of 250 people, it was found that 25% do not bathe every day - This is a sample statistic because it is based on a specific sample of 250 people.