$2.48 /each. This Minwax 3.75 oz. Golden Oak Wood Putty is perfect for covering up small imperfections in bare, painted, stained and finished wood. The putty is color-matched to blend in with wood finish stains. California residents: see Proposition 65 information. Non-hardening, pre-mixed formula designed to fill small holes and other minor imperfections in bare, stained or finished woodwork and paneling, molding, trims and doors.
The Z-value is a test statistic for Z-tests that measures the difference between an observed statistic and its hypothesized population parameter in units of standard error. For example, a selection of factory molds has a mean depth of 10cm and a standard deviation of 1 cm.
For each significance level, the Z-test has a single critical value (for example, 1.96 for 5% two tailed) which makes it more convenient than the Student's t-test which has separate critical values for each sample size.rom Wikipedia, the free encyclopedia. A Z-test is any statistical test for which the distribution of the test statistic under the null hypothesis can be approximated by a normal distribution. Because of the central limit theorem, many test statistics are approximately normally distributed for large samples.