#Adding phstat in excel how to#
#Adding phstat in excel install#

#Adding phstat in excel how to#

There will be a file you can download ( PHStat.xlam PHStat.xlam )if you do not have PhStat, and also another file to show you how to use PhStat to get the answers. вЂ“ everything else should be pretty straight forward in the excel spreadsheet it shows and tells you exactly what to do. Do not do more than is asked please.ДЄlso the Survey Data ISSCM491.xlsx file is attached as (if needed) to look at this for this homework assignment (if it is) mentioned inside hw8.xlsx вЂ“ the file for this assignment is hw8.xlsx. Will show you the The Correct way on how to answer and submit this assignment, so you could take a look at that to help how to format to answer the questions. Some add-ins are built in to Excel, such as Solver and the Analysis ToolPak.

#Adding phstat in excel install#

By default, add-ins are not immediately available in Excel, so you must first install and (in some cases) activate these add-ins so that you can use them. The Child Health and Development collected data to study the relationship between the infant weightsДЄ sample of 40 observations are given in the next worksheet (Note that this homework has 2 questions) #How to use phstat in excel how to# Add-ins provide optional commands and features for Microsoft Excel. Model Building вЂ“ Stepwise Regression (Backward Elimination Method): Determine the estimated regression equation containing ALL six independent variables (a) Follows the process steps described below to obtain a significant regression model. Eliminate non-significant variables, one at a time, until you obtain a regression model (c) Which independent variables are NOT significant in this model at a = 0.05? (b) What percent of the total variation in baby weights is explained by this regression? (a) What is the estimated regression equation with these six independent variables? (gestation, height, smoke, age, weight, and parity).

Remove the non-significant independent variable(s), one at a time, starting With all independent variables significant. With the variable that has the highest p-value first. Check the independent variables for significance at a=0.05. (i) If all independent variables are significant, stop. It's recommended to download and install Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. If there are no custom toolbars in any workbook or add-ins, the Add-Ins tab will not be displayed. What is the significant model found after completing the process (b) These process steps described above will result in a regression model that has significant (ii) If some independent variables in the model are not significant, repeat Step 2. As far as I know, the Add-Ins tab will only display if it uses custom toolbars. (c) Now use the stepwise regression available in PHStat. What is the model found by the PHStat stepwise regression? Run stepwise regression (usingД«ackward elimination approach) to obtain a significant regression model. When you run stepwise regression in question (c), (f) Which confidence interval estimate has a larger interval? Why? Interval estimate for the mean baby weights for the newborns with the following values: (e) Using the model you found to be performing better in (d), construct 95 percent confidence They are different, which model is performing better? (d) Compare the significant regression models obtained in (b) and (c).