solving problem, statistics assignment help
Anonymous

Question Description

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?

First: Use the Hypothesis test for proportion

Second: Given the results of Sara’s poll, determine the proportions for Jones & Johns.

Third: Test for assumptions of normality

Fourth: Determine your Confidence Level

Fifth: Calculate the Z statistic

Sixth: Determine whether you have enough evidence to reject the null hypothesis. That is, should Sara be confident that Jones will win the presidential election based upon her poll data.


Final Answer

Hi there!Attached is a Word document containing the complete solution. If you have any questions, please feel free to ask. Thanks again!Selenica

Sarah’s conclusion is neither correct nor logical. A sample size of 15 is not large enough for any
statistical test to represent a true population, certainly not when that population is over
300,000,000 (as is the United States population).
1) H0: P = 0.5
HA: P > 0.5
Where P is the population proportion we ar...

Selenica (1623)
Rice University

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