In continuation of the Springdale Shopping District Survey, the use of confidence intervals is introduced to improve the assessment of the quality of statistics derived from the survey of a sample population. Historically, it has been assumed that respondents represent a simple random sample of all potential respondents within the community and that the population is large enough that applying the finite population correction cannot make an appreciable difference in the results. The use of confidence intervals will provide an indication of the level of confidence that can be applied when examining survey results. The survey offers information on shopper bias towards each store by identifying respondents' overall attitude towards each shopping area. Survey results were collected through a telephone survey conducted by Archimedes Group, Indiana, PA (Weiers, 2008) of 150 local residents. Managers associated with business areas such as the Springdale business area obtain useful information through point estimates regarding a series of variables that describe the characteristics and behaviors of their customers. Being able to have confidence in the survey results Furthermore, it is useful for them to have an idea of the likely accuracy of these estimates. Survey results can be used to improve store layout, develop employee skills and influence shopping habits. When looking at the general attitude of buyers towards each of the three business areas, several important facts are needed to prepare the results. The average or average response, the sample size of our population and clarifications on the level of confidence acceptable to the end user of the survey, all continued...... middle of paper ......reassured you of the level of confidence that they can deduce from the results. It is interesting to note in evaluating the overall results using confidence intervals, when comparing ratings for each mall across various user demographics, the lower the rating, the greater the maximum probable error. Overall survey indicators reflect a preference over Springdale Mall for shoppers, even when evaluating the smaller demographic group in the sample population. The West Mall continues to rank at the bottom of the shopper survey, below the Downtown Area. Using a 95% confidence interval helps ensure the maximum probable error that a random shopper will differ in opinion from the point estimate results of the Springdale Shopping Survey.Works CitedWeiers, R.M. (2008). Introduction to Business Statistics, Seventh Edition. Mason, Ohio. Learning the cent.
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