Conduct a marketing experiment with 200 students and 2 brands ofsoft drink. The

Question

Conduct a marketing experiment with 200 students and 2 brands ofsoft drink. The purpose is to taste one of the 2 brands andidentify. Question 1: What is the probability that the sample percentageof correct identifications is greater than 65%? Question 2: Which is more likely to occur, more than 60%correct identifications in the sample of 200 or more than 55%correction identification in a sample of 1000? Any assistance is greatly appreciated. Question 1: What is the probability that the sample percentageof correct identifications is greater than 65%? Question 2: Which is more likely to occur, more than 60%correct identifications in the sample of 200 or more than 55%correction identification in a sample of 1000? Any assistance is greatly appreciated.

Explanation / Answer

I can only answer the second question: P( X > 0.65 * 200)
= P(X > 130)
= 6.928726e-06

P(Xn > 130.5)
= P(Z > (130.5 - 100) / 7.071068)
= P(Z > 4.313351)
= 8.039917e-06 Hope this helps~ Please Rate!

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