In a survey of 1002 people, 70% said they voted in a recent presidential election. Answer the following questions by han
Posted: Thu Jun 30, 2022 7:41 pm
In a survey of 1002 people, 70% said they voted in a recent presidential election. Answer the following questions by hand.
a) 1002 people, how many of them said that they voted?
b) Use formula to construct a 82% confidence interval estimate of the proportion of the people who say that they voted.
c) Use Brock calculator to construct a 97% confidence interval estimate of the proportion of the people who say that they voted.
d) As the level of confidence increases what happens to the width of the confidence interval?
a) 1002 people, how many of them said that they voted?
b) Use formula to construct a 82% confidence interval estimate of the proportion of the people who say that they voted.
c) Use Brock calculator to construct a 97% confidence interval estimate of the proportion of the people who say that they voted.
d) As the level of confidence increases what happens to the width of the confidence interval?