Calculate Standard Error Intercept
Contents |
Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow standard error y intercept the company Business Learn more about hiring developers or posting ads with us Cross Validated standard error of intercept regression Questions Tags Users Badges Unanswered Ask Question _ Cross Validated is a question and answer site for people interested in statistics, machine standard error of intercept coefficient learning, data analysis, data mining, and data visualization. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and
Standard Error Of Intercept Excel
rise to the top What exactly is the standard error of the intercept in multiple regression analysis? up vote 3 down vote favorite 1 I understand that in multiple regression analysis, for each independent variable, you would graph dependent variable vs independent variable and you would make a line of best fit and calculate the standard error. However, how does it work for intercept? Can some one give me a concise but clear standard error of intercept formula explanation? multiple-regression standard-error intercept share|improve this question edited Sep 19 '15 at 22:16 gung 73.6k19160307 asked Sep 19 '15 at 22:13 StatMA 183 add a comment| 2 Answers 2 active oldest votes up vote 2 down vote accepted The standard error of the the intercept allows you to test whether or not the estimated intercept is statistically significant from a specified(hypothesized) value ...normally 0.0 . If you test against 0.0 and fail to reject then you can then re-estimate your model without the intercept term being present. share|improve this answer answered Sep 19 '15 at 22:30 IrishStat 13.3k11528 Thank you so much! –StatMA Sep 19 '15 at 22:33 you are quite welcome .... –IrishStat Sep 19 '15 at 22:35 3 "...then you can re-estimate your model without the intercept term..." is a statement that needs about a textbook's worth of qualification and caveats. –MichaelChirico Sep 20 '15 at 4:23 as MichaelChirico correctly pointed out NOT including the intercept can have unwanted side effects . See azdhs.gov/lab/documents/license/resources/calibration-training/… and stats.stackexchange.com/questions/113777/… –IrishStat Sep 20 '15 at 11:13 add a comment| up vote 4 down vote Your characterization of how multiple regression works is inaccurate. Your version implies fitting a simple linear regression for each variable in turn (and presumably using each of those
1: descriptive analysis · Beer sales vs. price, part 2: fitting a simple model · Beer sales vs. price, part 3: transformations of variables · Beer sales standard error of intercept linear regression vs. price, part 4: additional predictors · NC natural gas consumption
How To Calculate Standard Error In R
vs. temperature What to look for in regression output What's a good value for R-squared? What's the
How To Calculate Standard Error Without Standard Deviation
bottom line? How to compare models Testing the assumptions of linear regression Additional notes on regression analysis Stepwise and all-possible-regressions Excel file with simple regression formulas Excel file with http://stats.stackexchange.com/questions/173271/what-exactly-is-the-standard-error-of-the-intercept-in-multiple-regression-analy regression formulas in matrix form If you are a PC Excel user, you must check this out: RegressIt: free Excel add-in for linear regression and multivariate data analysis Mathematics of simple regression Review of the mean model Formulas for the slope and intercept of a simple regression model Formulas for R-squared and standard error of the regression http://people.duke.edu/~rnau/mathreg.htm Formulas for standard errors and confidence limits for means and forecasts Take-aways Review of the mean model To set the stage for discussing the formulas used to fit a simple (one-variable) regression model, let′s briefly review the formulas for the mean model, which can be considered as a constant-only (zero-variable) regression model. You can use regression software to fit this model and produce all of the standard table and chart output by merely not selecting any independent variables. R-squared will be zero in this case, because the mean model does not explain any of the variance in the dependent variable: it merely measures it. The forecasting equation of the mean model is: ...where b0 is the sample mean: The sample mean has the (non-obvious) property that it is the value around which the mean squared deviation of the data is minimized, and the same least-squares criterion will be used later to estimate the "mean effect" of an independent variable. The error that the mean model makes for observatio
»statisticscommentsWant to join? Log in or sign up in seconds.|Englishlimit my search to /r/statisticsuse the following search parameters to narrow your results:subreddit:subredditfind submissions in "subreddit"author:usernamefind submissions by "username"site:example.comfind submissions from "example.com"url:textsearch for "text" in https://www.reddit.com/r/statistics/comments/cmmzb/how_do_i_calculate_the_standard_error_of_the/ urlselftext:textsearch for "text" in self post contentsself:yes (or self:no)include (or exclude) self postsnsfw:yes (or nsfw:no)include (or exclude) results marked as NSFWe.g. subreddit:aww site:imgur.com dogsee the search faq for details.advanced search: by author, subreddit...this post was submitted standard error on 06 Jul 20103 points (80% upvoted)shortlink: remember mereset passwordloginSubmit a new linkSubmit a new text poststatisticssubscribeunsubscribe33,839 readers~36 users here nowHomework questions are for r/homeworkhelp; How to ask a statistics question; Modmail us if your submission doesn't appear right away, standard error of it's probably in the spam filter. This is a subreddit for the discussion of statistical theory, software and application. Guidelines: This is not a subreddit for homework/design/career questions. They will be swiftly removed, so don't waste your time! Please kindly post those over at: r/homeworkhelp or /r/AskStatistics. Thank you. Please try to keep submissions on topic and of high quality. Just because it has a statistic in it doesn't make it statistics. Memes and image macros are not acceptable forms of content. Self posts with throwaway accounts will be deleted by AutoModerator Related subreddits: r/askstatistics r/machinelearning r/probabilitytheory r/datasets r/opendata r/rstats r/econometrics r/dataisbeautiful r/sas/ r/compsci/ r/ComputerScience/ r/OnCourtAnaly
be down. Please try the request again. Your cache administrator is webmaster. Generated Thu, 06 Oct 2016 01:17:22 GMT by s_hv720 (squid/3.5.20)