The Descriptive Statistics table shows the sample size, mean, standard deviation, and standard error for the variable. Click the OK button to finish the analysis and generate results.Additionally, it is possible to produce a histogram of the data and a confidence interval for the mean. Note that by default the test procedure provides descriptive statistics of the variable and the hypothesis test results.Click the t-Test for Mean tab and set Test Mean to 21 Make sure that Alternate Hypothesis is set to Mean 21 (two-sided test), check Confidence Interval(s) and set Confidence Level(s) inĀ % to 95.Click the arrow button to the right of Input and select A(X):diameter.Click the Input tab, set Input Data Form to Raw.Open the One-Sample t-Test dialog by using the menu item Statistics:Hypothesis Testing:One-Sample t-Test.Start with a new workbook and import the file \Samples\Statistics\diameter.dat.
Hence they may use the One-Sample t-Test in Origin following the steps below: Historically, the distribution of the measured diameters is known to be approximately normal, but the standard deviation of the population is unknown. They want to determine whether the mean diameter of the nuts is equal to 21 or not. The quality control department randomly drew 120 nuts from the finished products, measured the diameters for each and stored the results in Diameters.dat file. Suppose a manufacturer produces high-quality screw nuts that must equal 21 millimeters in diameter. One-Sample t-Test Perform One-Sample t-Test using Raw data
Steps Hypothesis Tests in Origin Data Type
How to carry out hypothesis tests for practical data with Origin.Usually, it requires that the data are independently sampled from a normal distribution. With parametric methods,assumptions are made about the underlying distribution from where the sample populations are selected. Hypothesis tests are frequently used to measure the quality of sample parameters or to test whether estimations for two samples on a given parameter are equal. 3.4.2 Perform Two-Sample t-Test using Summarized data.3.4.1 Perform Two-Sample t-Test using Raw data.3.3.2 Perform Pair-sample t-Test using Summarized data.3.3.1 Perform Pair-sample t-Test using Raw data.3.2.2 Perform One-Sample t-Test using Summarized data.3.2.1 Perform One-Sample t-Test using Raw data.