lesson 5.1 exercise a: diagraming and statist...
lesson 5.1 exercise a: diagraming and statistical reasoning\ndirections: for all of the following studies, draw out a diagram that displays the population, the sample, and the data gathered from the sample. then examine the sample to see if it is adequately sized and sufficiently random.\nstudy 1: a conservative organization reports that 71% of the public is opposed to universal healthcare, based on a questionnaire sent to its mailing list.\nthe sample is not adequately sized and is not sufficiently random\nthe select group of the organization mailing.\nstudy 2: to find the average salary of doctors, a reporter interviewed a random sample of doctors attending a convention of the american medical association.
Answer
# Answer:
For STUDY 1: The sample is not adequately sized and not sufficiently random as it is from the organization's mailing - list.
For STUDY 2: The sample may not be representative of all doctors since it is only from doctors attending a specific convention of the American Medical Association.
# Explanation:
## Step1: Analyze STUDY 1 sample
The sample is from a mailing - list of a conservative organization. This is a self - selected group and not randomly chosen from the entire public, so it lacks randomness and may not be of adequate size to represent the public.
## Step2: Analyze STUDY 2 sample
The sample consists of doctors at a specific convention. Doctors at this convention may have different salary characteristics compared to all doctors (e.g., they may be more specialized, more experienced, etc.), so the sample may not be representative of the entire population of doctors.