e mathel.com Allyson Maco rald I 43/18 850 PM STA 2023-Elementary Statistics Qui

Question

e mathel.com Allyson Maco rald I 43/18 850 PM STA 2023-Elementary Statistics Quiz: Quiz 7 This Question: 1 pt Time Remalning: 01:5818 Submit Quiz This Quiz: 16 pts possible 48 of 16 (0 completel Exit poling is a popular sechnique used to determine the outcome of an election prior to nesults being tallied Suppose a referendum to increase over 100,000). your result, ocomment on the dangers of using exit poling to call elections. funding for education is on the ballot in a large town (voting popuilation An exit poll of 300 vobers fiends that 147 voted for the relerendum. How ikely are the results of your sample if the popuiation proportion of vobers in the town in favor of the referendum is 0.517 Based on How kely are the results of your sample if the population propertion of voters in the town in tavor of the referendum is 0 517 The probability that fewer than 147 people voted for the referendum is Round to four decimal places as needed.) Comment on the dangers of using ext poling to call elecsions. Choose the cormect answer below OA The result is unusual becaa* the probabity that p is eOual to or more exte ne than he sample pro erson s lets hae 5% OB. The result is not unusual because the probabilty that pisequal to or more extreme tan the sample proporion is less than 5%. O C The result is not unusual because the probability that pis equal to or more extreme than he . Thus, it is urusua for a wrong cal to be made in an election , Thus,eisunusual tr a wrong oal to be mude n an ele ion, sample propoon is peater than 5%. Thus, ,"not unusual for a wrong cal to be-inanee ton lot polg preo non ageater ran 5%, ma tant uusua for a wog cal to be made n aneaon The resut isunusual because to probabily tat p s equal to or more onome than re alone is considered D. Click to select your answerls).

Explanation / Answer

Ans:

sample proportion=147/300=0.49

z=(0.49-0.51)/sqrt(0.51*(1-0.51)/300)

z=-0.693

P(z<-0.693)=0.2442

As,above probability is greater than 0.05,so the result is not unusual.

Option C is correct.

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