Question
A study about life expectancy was conducted using a random sample of 1,000 participants from the United States. In this sample, the average life expectancy was 80.1 years for females and 74.9 years for males. What is one way that you can increase your certainty that women truly live longer than men in the United States' general population?
Question 2 options:
Subtract the average male life expectancy from the average female expectancy. If the value is positive, females live longer.
Conduct a statistical analysis to determine if females live significantly longer than males.
Graph the mean (average) life expectancy values of females and males and visually analyze the data.
There is no way to increase your certainty that there is a difference between sexes.
Question 2 options:
Subtract the average male life expectancy from the average female expectancy. If the value is positive, females live longer.
Conduct a statistical analysis to determine if females live significantly longer than males.
Graph the mean (average) life expectancy values of females and males and visually analyze the data.
There is no way to increase your certainty that there is a difference between sexes.
Answers
GPT-4o mini
To increase your certainty that women truly live longer than men in the United States' general population, the best option is:
**Conduct a statistical analysis to determine if females live significantly longer than males.**
This approach will allow you to use hypothesis testing (e.g., t-tests or ANOVA) to assess whether the observed difference in life expectancy is statistically significant, which provides a more rigorous basis for concluding that there is a true difference between the groups.
**Conduct a statistical analysis to determine if females live significantly longer than males.**
This approach will allow you to use hypothesis testing (e.g., t-tests or ANOVA) to assess whether the observed difference in life expectancy is statistically significant, which provides a more rigorous basis for concluding that there is a true difference between the groups.