Drink Probability Experiment Preface to Study

You plan to conduct a marketing experiment in which students are to taste one of two different brands of soft drink. Their task is to identify the brand tasted.

You select a random sample of 200 students and assume that the students have no ability to distinguish between the two brands. (Hint: if an individual has no ability to distinguish between the two soft drinks, then each brand is equally likely to be selected).

What is the probability that the sample will have between 50% and 60% of the identifications correct?

Each taste has a 50/50 chance that the brand will be identified.

Where...

between 50% and 60% identifications are correct, there is a 90% probability, with a 10% margin of error.
The probability is 90% that the sample percentage is contained within what symmetrical limits of the population percentage?

We do not know the definition of 'population' here in terms of numbers.

The analysis assumes that infinity is reflected in the randomness of the study's sample population.

The probability that the sample percentage is contained within the symmetrical limits of the population percentage: < or = 100%

Symmetrical limits are understood as 0 to 100, with a probable outcome of a 50/50 chance each taste.

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