Sample size calculation
Not what you're looking for?
9-30. Past surveys reveal that 30 percent of tourists going to Las Vegas to gamble during a
weekend spend more than $1,000. Management wants to update this percentage.
a. The new study is to use the 90 percent confidence level. The estimate is to be within 1
percent of the population proportion. What is the necessary sample size?
b. Management said that the sample size determined above is too large. What can be done
to reduce the sample? Based on your suggestion recalculate the sample size.
Purchase this Solution
Solution Summary
The solution provides step by step method for the calculation of sample size . Formula for the calculation and Interpretations of the results are also included.
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.