On a regular spring time a lot of tulip flower fields outside the Keukenhof are headed (taking the flower off) on the 30th of April or within a couple of days after it. If you want to see the flower fields as well make sure that you visit before this date!
In factorial designs, a factor is a major independent variable. In this example we have two factors: time in instruction and setting. A level is a subdivision of a factor. In this example, time in instruction has two levels and setting has two levels. Sometimes we depict a factorial design with a numbering notation.
Engineering judgment may include such factors as: 1  The precision and accuracy of measurement and the associated uncertainty of measurement. 2  The statistical confidence interval or tolerance interval of the initial measurement. 3  The number of significant figures of the measurement. 4  The intended use of the measurement including the engineering 5  ... Histo