Highly praised for its exceptional clarity, technical accuracy, and useful examples , Weiers’ INTRODUCTION TO BUSINESS STATISTICS, Seventh Edition. Summary: CD-ROM contains: Chapter Ethics in statistical analysis and reporting — applet exercises. Bookmark: ; Work. , English, Book, Illustrated edition: Introductory business statistics / Ronald M. Weiers ; with business cases by J. Brian Gray, Lawrence H. Peters. Weiers.
Click the Seconds label at the right and drag it into the Values rectangle. Future studies their sponsors and the interpretation of their results will play an important role in the safety of our highways and the economic vitality of our cellular phone industry.
Introduction to Business Statistics : Ronald M. Weiers :
Based on the crosstab and means in part c would it seem that any of the f ve suppliers should be examined further with regard to the effect their product might have on the f nal pressure capabilities of the f nished product Explain your answer. Sampling Distributions 9. This software is featured in nearly one-third of the Computer Solutions sets of printouts and instructions that appear in the text. Discrete quantitative variables can take on only certain values along an interval with the possible val- ues having gaps between them while continuous quantitative variables can take on a value at weires point along an interval.
Comments and reviews What are comments? Continuous quantitative variables can take on a value at any point along an interval. In the years when U.
The data values are listed in f le XR Visual Description of Data 21 Compared staristics the histogram the frequency polygon is more realistic in that the number of observations increases or decreases more gradually across the various classes.
The average time for all 50 persons was Since the mean is greater than the median the distribution is positively skewed. The 80 times are in data file XR Interpret the numbers in the leftmost column of the output.
Found at these bookshops Searching – please wait Next in terms of relevance consider the unfortunates of Figure 1. Walter Wickerbin former newspaper columnist.
In the Statisttics Type submenu select Cutpoint. A Preview of Business Statistics 3 findings based on statistical data or 2 as a consumer of statistical claims and findings offered by others some of whom may be either incompetent or unethical.
Introduction to Business Statistics
Consider again the 8 years of return-on-assets data reported by Ryder System Inc.: Because the input range includes the name of the variable statistlcs the first row click to place a check mark in the Labels in First Row box.
Double-click on the chart title and revise as shown.
Contents xi Chapter Jordan and Donna F. In statustics d there is no relationship at all between the variables. Along with the equation the display includes information we will be covering later in the text.
A continuing case and contemporary applications combine with more than new or revised exercises and problems that reflect the latest changes in business today with an accuracy you can trust. In a useful application of the concept of cross-tabulation we can generate a tabular display that describes how a selected quantitative variable tends to differ from one category weiefs another or from one combination of categories to another.
Inferential statistics goes beyond mere description and based on sample data seeks to reach conclusions or make predictions regarding the population from which the sample was drawn. Visual Description of Data 39 We can use Excel or Minitab to easily generate both a scatter diagram for the data and the linear equation that best fits the 30 data points.
A census involves measuring all people or objects in the population. Visual Description of Data 53 2. Introduction and Background The Histogram The histogram describes a frequency distribution by using a series of adjacent rectangles each of which has a length proportional to either the frequency or the relative frequency of the class it represents. The exact values each of these variables could take on would have no gaps between them. Macmillan Company p. In this case the mode does not appear to be a very good descriptor of the data as five of the other six values are all smaller than 3.