Author Question: Which of the following is not true about drawing a simple random sample from a population? a. It ... (Read 39 times)

madam-professor · **on:** Jul 24, 2018

Which of the following is not true about drawing a simple random sample from a population?
a. It protects against hidden or unknown biases.
b. It gives each member of the population an equal chance of being selected.
c. It requires that the population be represented by a list.
d. It requires that the size of the sample be no more than 5 of the size of the population.

Question 2

According to a survey conducted by the Association for Dressings and Sauces (this is an actual association), 85 of American adults eat salad at least once a week, so that 15 of American adults eat no salad at all A nutritionist suspects that the percentage (of no-salad eaters) is wrong. She conducts a survey among a sample of adults in her area to test this idea. What sample size would be needed to provide a margin of error no larger than 2?