Question

a recent telephone poll of 999 randomly selected women revealed that 9 in 10 women believe there has been progress in finding a cure for cancer in the last 27 years. describe the population, sample, population parameters, and sample statistics.

b. the 999 women selected
c. all women in the country
d. 9 out of 10 of the 999 women selected

identify the population parameter in the given study. choose the correct answer below.
a. the total number of all women in the country
b. the number of women selected
c. the percentage of the 999 women selected who believe there has been progress
d. the percentage of all women in the country who believe there has been progress

identify the sample statistic. choose the correct answer below.
a. 999
b. the total number of all women in the country
c. 9 out of 10
d. the proportion of all women in the country who believe there has been progress

Explanation:

Identify the population and sample

Using the Sample vs Population and Statistical Population knowledge points

• Population: The entire group of interest, which is all women in the country.
• Sample: The subset selected for the study, which is the 999 selected women.

Identify the population parameter

Using the Population Parameter knowledge point

• Parameter: A numerical characteristic of the entire population.
• Application: The percentage of all women in the country who believe there has been progress.

Identify the sample statistic

Using the Sample Statistic knowledge point

• Statistic: A numerical characteristic of the sample.
• Application: The proportion (or percentage) calculated from the sample, which is 9 in 10 (or 90%) of the 999 selected women.

Answer:

Question 1

• A. The 999 women selected
• B. All women in the country (Correct answer)
• C. 9 out of 10 of the 999 women selected

Question 2

• A. The total number of all women in the country
• B. The number of women selected
• C. The percentage of the 999 women selected who believe there has been progress
• D. The percentage of all women in the country who believe there has been progress (Correct answer)

Question 3

• A. 999
• B. The total number of all women in the country
• C. 9 out of 10 (Correct answer)
• D. The proportion of all women in the country who believe there has been progress