Based on what you now know about statistical inference, is Sara’s conclusion a logical conclusion?, Business Statistics help

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MAT 510 – Homework Assignment Homework Assignment 9 Due in week 10 and worth 30 points Suppose that there are two (2) candidates (i.e., 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? 2. How many friend samples Sara should have in order to draw the conclusion with 95% confidence interval? Why? 3. How would you explain your conclusion to Sara without using any statistical jargon? Why? Type your answers below and submit this file in Week 10 of the online course shell: Suppose that there are two (2) candidates (i.e., Jones and Johns) in the upcoming presidential ele Sara notes that she has discussed the presidential election candidates with 15 friends, and 10 sai Sara is therefore convinced that candidate Jones will win the election because Jones gets more t Sara does not win the election H0: p 0.5 (Joans wins the election) Sara's Presidential Poll Number of people polled Sara Poll percentage (Joans) Not vote for Joans Critical value to reject Null hypothesis n p q p - 0.5 sqrt(pq/n) Z n 15 increase n until Z > 1.645 so t 0,6667 0,3333 0,1667 0,12171308 1,3696145 1.645 so that you can reject the Null hypothesis 1,645 Not in rejction region i.e. Can not reject the Null Hypothesis (Sata does not win election) Enough evidence to support alternative hypothesis
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MAT 510 – Homework Assignment
Homework Assignment 9
Due in week 10 and worth 30 points
Suppose that there are two (2) candidates (i.e., 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?
2. How many friend samples Sara should have in order to draw the conclusion with 95% confidence
interval? Why?
3. How would you explain your conclusion to Sara without using any statistical jargon? Why?
Type your answers below and submit this file in Week 10 of the online course shell:
a)
To solve this problem, you should consider that to win the election the winner must have at least 50% of
the votes, meaning that the expected proportion would be of 50/100 = 0.50
Taking this into account...


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