If an interactive poll found that 379 of 2,246 adults aged 18 or older have at least one tattoo. How would I determine the following solutions?
- Obtain a point estimate for the proportion of adults who have at least one tattoo.
- ?Construct a 9090?% confidence interval for the proportion of adults with at least one tattoo.
- ?Construct a 9999?% confidence interval for the proportion of adults with at least one tattoo.
- ?What is the effect of increasing the level of confidence on the width of the? interval?