What hypothesis testing procedure should you use to answer these questions? Assume all samples are simple random samples, and assume α = 0.05 if it isn’t specified.
A state-by-state survey found that the proportion of adults who are smokers in Alabama and Missouri was 24.7% and 28.7%, respectively. Each has a sample size of 2000. At α = 0.01, can you support the claim that the proportion of smokers is lower in Alabama than in Missouri?
Question 21 options:
One sample z-test for the population mean.
Two sample z-test for the population means.
One sample z-test for proportions.
Two sample z-test for proportions.
One sample t-test for the population mean.
None of our hypothesis tests fit.
1 answer
The correct hypothesis testing procedure to answer this question is a two sample z-test for proportions. This is because we are comparing the proportions of smokers in two different populations (Alabama and Missouri) and we have sample data for both populations.
1 answer