Expert answer:draw the conclusion with 95% confidence interval

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Expert answer: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: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?
week10_calculation.xlsx

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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
Jones does not win the election
H0: p <= 0.5 H1: 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
22
increase n until Z > 1.645 so t
0.6667
0.3333
0.1667
0.10050127
1.65868553
<= 21.6384612 he upcoming presidential election. es with 15 friends, and 10 said that they are voting for candidate Jones. n because Jones gets more than 50% of votes. ot win the election increase n until Z > 1.645 so that you can reject the Null hypothesis
0.666667
0.333333
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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