![]() ![]() The total number of SRSs, the number that “hit” (i.e., the confidence interval contained µ), and the percent hit are tallied for you. The lines on each side of the dot span the confidence interval. The dot marks the sample mean, which is the center of the interval. Indicate whether you want to find the area above a certain value, below a certain value, between two values, or outside two values. ![]() Each interval is based on a SRS of size n. Select 'Value from an area (Use to compute Z for confidence intervals).' Specify the area, mean and standard deviation. In this applet we construct confidence intervals for the mean (µ) of a Normal population distribution. Click on any confidence interval to show the sample data that the interval is based on.Ĭlick the "Quiz Me" button to complete the activity.Ī level C confidence interval for a parameter is an interval computed from sample data by a method that has probability C of producing an interval containing the true value of the parameter. Intervals that contain the population mean µ ("hits") will be colored gray "misses" will be colored red. Click SAMPLE 25 take 25 samples all at once. On the right you'll see the sampled values as small yellow dots the large dot will show the sample mean, and the lines on each side of this dot span the confidence interval. 100% of donations go to charity - together we've raised over GB£5,600 so far! Donations of £20 or more get access to a shared folder of editable pptx files.Set the desired confidence level and sample size with the sliders, then click SAMPLE to take a sample. Help me support my chosen charities by donating via my Biology4Good page. Here are some example DataNuggets and here are some datasets and links. A website devoted to data use in schools, connecting authentic datasets to the stories behind them. Is Statbook Digital on the app store Statbook Digital is not on the app store (yet), but it can be accessed on any modern browser.
0 Comments
Leave a Reply. |