For a poll in which 55% of the 620 randomly selected respondents say that they are in favor of improving the healthcare options in the US, construct a 95% confidence interval for the proportion of US residents who are in favor of improving healthcare options. Show or explain all of the steps you take toward your conclusion.

Question 3 (12 pts)
According to the American Dental Association, about 32% of Americans report that they never floss their teeth. Among an independently collected random sample of 377 college students, it was reported that 34% of the students in the sample never floss their teeth.
Perform a hypothesis test to determine whether there is significant evidence that college students fail to floss at a level that differs from that of the entire country’s population. When completing your test, be sure to discuss the conditions for inference, define your hypotheses, determine the standard error, find the appropriate p-value, and interpret this result in the context of the data.
Question 5 (4 pts)
The 99% confidence interval for the mean number of hours that a new college student will spend trying to figure out how their email account works is (0.34, 5.1). Explain in context what is meant by this confidence interval: write a sentence that describes exactly what the confidence interval means.