What is the confidence interval for the population mean in StatCrunch?

What is the confidence interval for the population mean in StatCrunch?

By default StatCrunch has a value of 0.95 for the Level input which will produce a 95% confidence level for the population mean, μ. Changing this value to 0.99 would produce a 99% confidence interval.

How do you find the confidence interval for the population mean?

When the population standard deviation is known, the formula for a confidence interval (CI) for a population mean is x̄ ± z* σ/√n, where x̄ is the sample mean, σ is the population standard deviation, n is the sample size, and z* represents the appropriate z*-value from the standard normal distribution for your desired …

What should be the default value of StatCrunch?

Be default StatCrunch has a value of 0.95 for the Level input which will produce a 95% confidence level for the population mean , μ. Changing this value to 0.99 would produce a 99% confidence interval. Leave the Level at the default 0.95 and click Compute!.

When to use row and row selected in StatCrunch?

Row may be used to refer to the row id column in the data table. This is a StatCrunch keyword, so any other columns given this name will not be properly referenced. Row_Selected may be used to obtain a vector of boolean values where an element in the vector is true if the corresponding row in the data table is selected and false otherwise.

How to create a confidence interval in StatCrunch?

The output table provides various statistics from this test including the test statistic and the P-value. In addition to a hypothesis test, StatCrunch can also create a confidence interval for the population mean. For this example, in the window containing the hypothesis test results above, choose Options > Edit to reopen the dialog window.

How to save, print, or download StatCrunch results?

After making selections within the dialog box, the results of the procedure will appear in the window. To save, copy, print, or download StatCrunch results (e.g., tables and graphs) select the Save, Copy, Print, or Download option under the Options menu of the result window.