To: Jack Potts, Nevada Gaming, Incorporated From: , Statistical Consultants, LLC Subject: Statistical Analysis Results for Nevada Gaming, Incorporated Thank you for trusting Statistical Consultants, LLC to provide you with a summary for the data you provided in regards to your gaming empire. The purpose of this report is to explain the results of our research. I. Introduction

Your factory in Jean, Nevada has 800 employees. Your personnel department selected 36 employees at random and provided their data to us. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. There were three tasks that you requested we research for you. First is to examine the gender and age of your factory workers. Next to see if your workers productivity performance ratings are better with hand held computers. Then finally we will analyze your screening process to see if both the General Aptitude and Manual Dexterity test are necessary to screen potential employees. II. Employee Profile

The use of descriptive statistics will provide simple summaries about the sample and about the observations that have been made from that sample. Such summaries may be either quantitative, i.e. summary statistics, or visual, i.e. simple-to-understand graphs. These summaries may either form the basis of the initial description of the data as part of a more extensive statistical analysis, or they may be sufficient in and of themselves for a particular investigation. The purpose of statistical estimation is to arrive at an estimator — preferably an easily implementable one. The estimator takes the measured data as input and produces an estimate of the parameters with the corresponding accuracy. We appreciate the data your Human Resources Department provided to us for our research. a. Gender

Using the sample of 36 employees