One sample Z-Test
One Sample Z-test
One Sample Z-test
Definition
Definition
(1) used to compare a sample mean to a population mean
(1) used to compare a sample mean to a population mean
(2) used to test whether a population parameter is significantly different from hypothesized value.
(2) used to test whether a population parameter is significantly different from hypothesized value.
Z score formula
Z score formula
Population: All the possible subjects or cases of interest
Population: All the possible subjects or cases of interest
Sample: A subset of a population
Sample: A subset of a population
