poll surveyed 1024 people about global warming. Of those surveyed, 389 said that they thought global warming would pose a serious threat to their way of life in their lifetime. a) Define p and for this problem. Which is the one that we will estimate a confidence interval? Which is the one that we know from th
A poll surveyed 1024 people about global warming. Of those surveyed, 389 said that they thought global warming would pose a serious threat to their way of life in their lifetime.
a) Define p and for this problem. Which is the one that we will estimate a confidence interval? Which is the one that we know from the survey and what is it?
b) Find a 90% confidence interval for the population proportion of people that think global warming will pose a serious threat to their way of life in their lifetime.
c) From this survey, can we be 90% confident that the majority of people do not think global warming will pose a serious threat to their way of life in their lifetime? Why?
a.
The point estimate (sample proportion for this case is the proportion of people who thought global warming would pose a serious threat to their way of life in their lifetime.
The sam[ple proportion is calculated as:
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
