Description
Suppose that there are two candidates (we'll call them Jones and Johns) in the upcoming presidential election. Sara notes that she has discussed the presidential election candidates with 15 friends, and 10 said that they are voting for candidate Jones. Sara is therefore convinced that candidate Jones will win the election because Jones gets more than 50% of votes.
Answer the following questions in the space provided below:
- Based on what you now know about statistical inference, is Sara's conclusion a logical conclusion? Why or why not?
- How many friend samples Sara should have in order to draw the conclusion with 95% confidence interval? Why?
- How would you explain your conclusion to Sara without using any statistical jargon? Why?
Unformatted Attachment Preview
Purchase answer to see full attachment
Explanation & Answer
Hi...I have completed all the three questions and formatted answers into the word document shared. Feel free to message me if you have any queries or doubts on any of the solutions. I have also attached a word document containing my references for writing the answers.I would be more than happy to help you out on follow-up work similar to this.Have a nice day!
MAT 510 – Homework Assignment
Homework Assignment 7
Due in week 10 and worth 30 points
Suppose that there are two candidates (we’ll call them Jones and Johns) in the upcoming presidential
election. Sara notes that she has discussed the presidential election candidates with 15 friends, and 10
said that they are voting for candidate Jones. Sara is therefore convinced that candidate Jones will win
the election because Jones gets more than 50% of votes.
Answer the following questions in the space provided below:
1. Based on what you now know about statistical inference, is Sara’s conclusion a logical
conclusion? Why or why not?
Explain your answer using statistical analysis concepts. Use the textbook to support your
answer.
2. How many friend samples Sara should have in order to draw the conclusion with 95% confidence
interval? Why?
To answer this question, you will:
a) Write the Null and Alternative hypotheses of the problem statement using the
concepts of proportions learned from assignment 6.
b) Completely performed a Z- test analysis for a proportion
c) Calculate the 95% Confidence Interval for a proportion
d) Calculate the new sample size
e) Explain the answer to the question using statistical analysis concepts. Use the
textbook for support. Remember to show all calculations.
3. How would you explai...