•“tail setting” displays the probability value tail specification, and Left, Right, or Center can be specified. Enter the following values or letters to specify:

Left: −1, “L”, or “l”

Center: 0, “C”, or “c”

Right: 1, “R”, or “r”

When input is skipped, “Left” is used.

•When one argument is omitted (resulting in three arguments), Tail=Left.

•When two arguments are omitted (resulting in two arguments), Tail=Left, μ =0.

• When three arguments are omitted (resulting in one argument), Tail=Left, σ =1, μ =0.

•When “tail setting” is Center, the lower bound value is returned. Calculation Result Output: x1InvN, x2InvN

Example: To determine the upper bound value when tail setting = Left, area value = 0.7, σ = 2, μ = 35

utPDf [Action][Distribution/Inv.Dist][Continuous][tPDf]

Function: Returns the Student’s t probability density for a specified value.

Syntax: tPDf(x, df [ ) ]

Calculation Result Output: prob

Example: To determine the Student’s t probability density when x = 2, df = 5

utCDf [Action][Distribution/Inv.Dist][Continuous][tCDf]

Function: Returns the cumulative probability of a Student’s t distribution between a lower bound and an upper bound.

Syntax: tCDf(lower value, upper value, df [ ) ]

Calculation Result Output: prob, tLow, tUp

Example: To determine the Student’s t distribution probability when lower value = 1.5, upper value = ∞, df = 18

uinvTCDf [Action][Distribution/Inv.Dist][Inverse][invTCDf]

Function: Returns the lower bound value of a Student’s t cumulative distribution probability for specified values.

Syntax: invTCDf(prob, df [ ) ]

Calculation Result Output: xInv

Example: To determine the lower bound value when prob = 0.0754752, df = 18

uchiPDf [Action][Distribution/Inv.Dist][Continuous][chiPDf]

Function: Returns the χ2 probability density for specified values.

Syntax: chiPDf(x, df [ ) ]

Calculation Result Output: prob

Example: To determine the χ2 probability density when x = 2, df = 4

Chapter 2: Main Application

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