confidence intervals

confidence intervals

Confidence intervals are the lower and upper bounds that represent the possible population means below and above which would be unlikely to have generated the sample mean that we observed.

    • Related Articles

    • confint()

      The confint() function computes confidence intervals (based on the t-distribution) for one or more parameters in a fitted model. The default confidence level is 95%. To adjust the confidence level, use the "level = " argument. Example 1: You can use ...

    • Support Tickets

      Support Tickets This book includes an online Help Desk you can use to ask questions, report technical issues, and share your feedback.  How to Submit a Ticket You can submit a ticket from within the online textbook or by email.  Submit a Ticket from ...

    • Histogram Bins

      Histogram bins What they are To understand the bins of a histogram, we must first understand a histogram. A histogram is a distribution of a quantitative, and often continuous, variable. A histogram divides the observations of the variable into ...

    • Bar Graphs vs Histograms

      What is the difference between a bar graph and a histogram?  Bar graphs and histograms are both visualizations of data, but they visualize different types of data. Bar graphs are used for categorical variables, while histograms are used for ...