Raisel is the new statistician at a cola company. She wants to estimate the proportion of the population who enjoy their latest idea for a flavour enough to make it a successful product. Raisel wants to obtain a 95-percent confidence level estimate of the population proportion and she wants the estimate to be within 0.01 of the true proportion.
a) Using only the information given above how large a sample is required? Each of your answers should be rounded up to a whole number.
Sample size: 0
b) A quick preliminary estimate of the proportion obtained by her predecessor was 0.37. Knowing this, how large a sample is required?
Sample size: 0