A statistics class has 50 females and 50 males. A researcher randomly selects a sample that has 80 males and 20 females. Why should the researcher be cautious of making inferences about the entire class based on the sample?
a. Because, by luck of the draw, the sample is unrepresentative of the population.
b. Because, by luck of the draw, the sample is representative of the population.
c. Because, by luck of the draw, the opinions of the females in the sample will not be the same as those of the females in the population.
d. Because, by luck of the draw, the sample was too small.
Question 2
When a sample does not represent the population, any evidence obtained from that sample regarding a law of nature is
a. possibly representative of the population. c. descriptive.
b. used to draw inferences. d. misleading.
Joseph Moore and His Family (1839), by Erastus Salisbury Field, reflects the emerging middle-class f
Statistics Center (07/2016)
Statistics Center (07/2016)
Sample prescriptions of drugs for oral fungal infections.
A pedigree for a Y-linked trait. These traits are transmitted from males to all male offspring in ea