The manager of a large movie theater (N-2000 each day) wanted to know how many customers...
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The manager of a large movie theater (N-2000 each day) wanted to know how many customers bought popcorn, so he would know if he should continue to make it Before he starts his study, he guesses that less than 50% of customers will buy popcorn. He chose 115 customers at random one day, and watched to see what they bought: 38 of them bought popcorn. If he plans to make a 90% confidence interval, and wants that interval to have a margin of error of 6% or less, how larger of a sample should he have used instead? The manager of a large movie theater (N-2000 each day) wanted to know how many customers bought popcorn, so he would know if he should continue to make it Before he starts his study, he guesses that less than 50% of customers will buy popcorn. He chose 115 customers at random one day, and watched to see what they bought: 38 of them bought popcorn. If he plans to make a 90% confidence interval, and wants that interval to have a margin of error of 6% or less, how larger of a sample should he have used instead?
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To determine the sample size required for the managers study we can use the formula for sampl... View the full answer
Related Book For
Management Accounting Information for Decision-Making and Strategy Execution
ISBN: 978-0137024971
6th Edition
Authors: Anthony A. Atkinson, Robert S. Kaplan, Ella Mae Matsumura, S. Mark Young
Posted Date:
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