URGENT! Need an answer to this problem on the picture. I\'ve found A and B easil
ID: 3351766 • Letter: U
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URGENT! Need an answer to this problem on the picture. I've found A and B easily, but I am completely stuck on C. I've posted the entire page though because A and B are used to find C... I think at least
anz 3) Zack heard a news story which stated 70% of students in Orange County drive to college. He was interested te see it the results were the same at his college. Zack surveyed a random sample of 50 students at SAC and found that 27 drive their own cars to campus. a) What proportion of students in Zack's sample drive to SAC? 2- 3o b) Zack wanted to see what sample percentages he should expect if the school percentage was actually 70%. He used a computer to flip a coin that had a 70% chance of ending up heads (30% chance tails). He flipped the coin 50 times and recorded the results. He then repeated the experiment 299 times to get the results below 40 30 20 10 0.50 0.55 0.60 0.65 0ut0 0.7 0.75 0.80 0.85 0.90 Out of the 300 simulations, what proportion produced a sample percentage less than Zack's from part a? Based on his sample data, should Zack conclude that the percentage of students at the school who drive to the campus is less than 70%? Explain why or why not c)Explanation / Answer
c) Both sample data as given in the part a and b clearly evidences that the percentage of students at the school who drive to the campus is less than 70% ,hence zack shold concludes this.
as in part a out of 50 students only 27 drives to the campus which is 54% (less than 70%)
and in part b
54% of 300 is 162 ,so 161 is less than 54%(as in part a)
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