Question
I am not having a problem with the math, I am having a problem understanding HOW to get to the problem. I have never been
I am not having a problem with the math, I am having a problem understanding HOW to get to the problem. I have never been good at word problems. Like up to (d) I have no clue! Anyway.
According to an exit poll in the 2015 Kentucky gubernatorial election, 456 of the 837 total poll respondents reported voting for the Republican candidate. You have been asked to determine if there enough evidence to predict if the Republican candidate won. Test that the proportion of exit poll respondents reported voting for the Republican candidate is greater than 50% in the population of all voters at the 5% significance level.
(A)What is the appropriate test to conduct?
(B)Are basic assumptions satisfied? List them.
(C)What are the null and alternative hypotheses?
(D)Based on the significance level at which you are testing, what is (are) the critical value(s) for the test?
(E)Calculate the appropriate test statistic, showing all your work.
(F)Calculate the corresponding p-value from the appropriate table.
(G)What conclusions can you draw from the hypothesis test? Be sure to comment on evidence from both the test statistic and p-value.
(H)Construct a 95% confidence interval around the sample proportion estimate. In this case, be sure to use the standard error you calculated when determining the test statistic that uses information about the population proportion.
(I)How would you interpret the confidence interval? What connections can you draw between the confidence interval and the hypothesis test?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started