### 统计代写|商业分析作业代写Statistical Modelling for Business代考|Excel, MegaStat, and Minitab for Statistics

• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
• Longitudinal Data Analysis 纵向数据分析
• Foundations of Data Science 数据科学基础

## 统计代写|商业分析作业代写Statistical Modelling for Business代考|Excel, MegaStat, and Minitab for Statistics

In this book we use three types of software to carry out statistical analysis – Excel 2013, MegaStat, and Minitab $17 .$ Excel is, of course, a general purpose electronic spreadsheet program and analytical tool. The analysis ToolPak in Excel includes many procedures for performing various kinds of basic statistical analyses. MegaStat is an add-in package that is specifically designed for performing statistical analysis in the Excel spreadsheet environment. Minitab is a computer package designed expressly for conducting statistical analysis. It is widely used at many colleges and universities and in a large number of business organizations. The principal advantage of Excel is that, because of its broad acceptance among students and professionals as a multipurpose analytical tool, it is both well-known and widely available. The advantages of a special-purpose statistical software package like Minitab are that it provides a far wider range of statistical procedures and it offers the experienced analyst a range of options to better control the analysis. The advantages of MegaStat include (1) its ability to perform a number of statistical calculations that are not automatically done by the procedures in the Excel ToolPak and (2) features that make it easier to use than Excel for a wide variety of statistical analyses. In addition, the output obtained by using MegaStat is automatically placed in a standard Excel spreadsheet and can be edited by using any of the features in Excel. MegaStat can be copied from the book’s website. Excel, MegaStat, and Minitab, through built-in functions, programming languages, and macros, offer almost limitless power. Here, we will limit our attention to procedures that are easily accessible via menus without resorting to any special programming or advanced features.

Commonly used features of Excel 2013, MegaStat, and Minitab 17 are presented in this chapter along with an initial application-the construction of a time series plot of the gas mileages in Table 1.7. You will find that thẻ limited instructions included hêré, alông with thê built-in hêlp féatures ớ all thieê sơftware packages, will serve as a starting point from which you can discover a variety of other procedures and options. Much more detailed descriptions of Minitab 17 can be found in other sources, in particular in the manual Getting Started with Minitab $17 .$ This manual is available as a pdf file, viewable using Adobe Acrobat Reader, on the Minitab Inc. website-go to http://www.minitab.com/en-us/support/documentation/ to download the manual. This manual is also available online at http://support.minitab.com/en-us/minitab/17/getting-started/. Similarly, there are a number of alternative reference materials for Microsoft Excel 2013. Of course, an understanding of the related statistical concepts is essential to the effective use of any statistical software package.

## 统计代写|商业分析作业代写Statistical Modelling for Business代考|Getting Started with Excel

Because Excel 2013 may be new to some readers, and because the Excel 2013 window looks somewhat different from previous versions of Excel, we will begin by describing some characteristics of the Excel 2013 window. Versions of Excel prior to 2007 employed many drop-down menus. This meant that many features were “hidden” from the user, which resulted in a steep learning curve for beginners. Beginning with Excel 2010, Microsoft tried to reduce the number of features that are hidden in drop-down menus. Therefore, Excel 2013 displays all of the applicable commands needed for a particular type of task at the top of the Excel window. These commands are represented by a tab-and-group arrangement called the ribbon-see the right side of the illustration of an Excel 2013 window on the next page. The commands displayed in the ribbon are regulated by a series of tabs located near the top of the ribbon. For example, in the illustration, the Home tab is selected. If we selected a different tab, say, for example, the Page Layout tab, the commands displayed by the ribbon would be different.
We now briefly describe some basic features of the Excel 2013 window:
1 File button: By clicking on this button, the user obtains a menu of often used commands-for example, Open, Save, Print, and so forth. This menu also provides access to a large number of Excel options settings.
$2 \mathrm{~ T a ̉ b s : ~ C l i c k i n g ̄ ~ o ̄ n ~ a ~ t a b b ~ r e ̂ s u l t s ~ i n ~ a ~ r i b b o ́ n ~ đ i s p l a y ~ o ̛ f ~ f e ̉ a t u}$ type of task. For example, when the Home tab is selected (as in the figure), the features, commands, and options displayed by the ribbon are all related to making entries into the Excel worksheet. As another example, if the Formulas tab is selected, all of the features, commands, and options displayed in the ribbon relate to using formulas in the Excel worksheet.
Appendix $1.1$
Getting Started with Excel
3 Quick access toolbar: This toolbar displays buttons that provide shortcuts to often-used commands. Initially, this toolbar displays Save, Undo, and Redo buttons. The user can customize this toolbar by adding shortcut buttons for other commands (such as New, Open, Quick Print, and so forth). This can be done by clicking on the arrow button directly to the right of the Quick Access toolbar and by making selections from the “Customize” drop-down menu that appears.

## 统计代写|商业分析作业代写Statistical Modelling for Business代考|Select Home : Format : Row Height

This notation indicates that we first select the Home tab on the ribbon, then we select Format from the Cells Group on the ribbon, and finally we select Row Height from the Format drop-down menu.

For many of the statistical and graphical procedures in Excel, it is necessary to provide a range of cells to specify the location of data in the spreadsheet. Generally, the range may be specified either by typing the cell locations directly into a dialog box or by dragging the selected range with the mouse. Although for the experienced user, it is usually easier to use the mouse to select a range, the instructions that follow will, for precision and clarity, specify ranges by typing in cell locations. The selected range may include column or variable labels-labels at the tops columns that serve to identify variables. When the selected range includes such labels, it is important to select the “Labels check box” in the analysis dialog box.

## 统计代写|商业分析作业代写Statistical Modelling for Business代考|Getting Started with Excel

1 文件按钮：通过单击此按钮，用户可以获得一个常用命令菜单，例如打开、保存、打印等。此菜单还提供对大量 Excel 选项设置的访问。
̉đ̛̉2 吨一种̉bs: Cl一世Cķ一世nḠ 这̄n 一种 吨一种bb r和̂s在l吨s 一世n 一种 r一世bb这́n D一世spl一种是 这̛F F和̉一种吨在任务类型。例如，当 Home 选项卡被选中时（如图所示），功能区显示的功能、命令和选项都与在 Excel 工作表中输入条目有关。作为另一个示例，如果选择了“公式”选项卡，则功能区中显示的所有功能、命令和选项都与在 Excel 工作表中使用公式有关。

Excel
3 入门快速访问工具栏：此工具栏显示提供常用命令快捷方式的按钮。最初，此工具栏显示保存、撤消和重做按钮。用户可以通过为其他命令（例如新建、打开、快速打印等）添加快捷按钮来自定义此工具栏。这可以通过直接单击快速访问工具栏右侧的箭头按钮并从出现的“自定义”下拉菜单中进行选择来完成。

## 广义线性模型代考

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## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。