Question 2
For both hypothesis testing and constructing confidence intervals, we need to check the independence
condition:
"If the data come from a simple random sample and consist of less than 10% of the population, then the
independence assumption is reasonable."
Consider the following sample.
A real estate researcher wants to estimate the proportion of houses that have a garage in a small town of
about 16,000 houses.
p = the proportion of houses with garages
The researcher samples 2,880 houses from the town using a simple random sampling method.
What proportion of the population (houses in the small town) are in the sample?