PARAMETERS Subcommand (POWER PEARSON ONESAMPLE command)

PARAMETERS controls the test assumptions. The keywords specify the sample size, total number of trials for groups, proportion parameters for groups, significance level, statistical tests, estimation method, and test direction.

POWER = value(s)
Optional keyword that specifies the desired power level(s). There is no default. Multiple values can be specified with each value separated by a blank space (or blank spaces). A grid of power values from value1 to value2 with the increment of value3, connected by the keywords TO and BY, can also be specified. When a grid of power values is specified, only one valid set of [value1 TO value2 BY value3] is allowed. Value1 and value2 must satisfy the condition 0 < value1 ≤ value2 < 1. The case where value1 = value2 is equivalent to specifying a single value1, regardless of value3. In order to restrict the number of power values, value3 must satisfy the condition 0.01 ≤ value3 < 1. The grid can be mixed with other power values, and can be placed anywhere.
Notes:
  • All specified values must be in the range [0,1].
  • In cases where duplicate values are specified, only unique values are used, and a warning message is generated to indicate that all duplicate values are excluded from the analysis.
TEST = {NONDIRECTIONAL}{DIRECTIONAL}
An optional keyword that determines whether the test is one or two-sided. NONDIRECTIONAL, or a two-sided test, is the default setting. When DIRECTIONAL is specified, power is computed for a one-sided test.
ADJUST_BIAS = boolean
An optional keyword that determines whether the bias adjustment is involved or ignored. TRUE is the default setting, which includes the bias adjustment term in the power estimation. When FALSE is specified, the bias adjustment term is ignored.
SIGNIFICANCE = value
An optional keyword that specifies the significance level of the Type I error rate for the test. The value must be a single double value ∈(0,1). The default level is 0.05.
N = integer
A required keyword that specifies the sample size. The value must be a single integer > 3. N and POWER cannot be specified simultaneously.
NULL = value
An optional keyword that specifies the null hypothesis value of the correlation parameter. Must be a single numeric value ∈(-1,1). The default setting is 0. When POWER is specified, the NULL value cannot be -1 or 1.
ALTERNATIVE = value
A required keyword that specifies the alternative hypothesis value of the correlation parameter. Must be a single numeric value ∈(-1,1). When POWER is specified, the ALTERNATIVE value cannot be -1 or 1, or equal to the NULL value.