HP Prime Graphing Wireless Calculator - Manual (Page 168)

164 Functions and commands
LinRegrTConfInt The linear regression confidence interval for the intercept.
Given a list of explanatory variable data (X), a list of response
variable data (Y), and a confidence level, returns a list
containing the following values in the order shown:
•
C: the given confidence level
• Critical T: the value of t associated with the given
confidence level
• DF: the degrees of freedom
• β
0
: the intercept of the linear regression equation
• serrInter: the standard error of the intercept
• Lower: the lower bound of the confidence interval for the
intercept
• Upper: the upper bound of the confidence interval for the
intercept
LinRegrTConfInt(List1, List2, C-value)
Example:
LinRegrTConfInt({1, 2, 3, 4}, {3, 2, 0, -
2},0.95) returns {0.95, 4.302..., 2, 5,
0.474..., 2.959..., 7.040...}
LinRegrTMean-
Resp
The linear regression confidence interval for a mean
response. Given a list of explanatory variable data (X), a list
of response variable data (Y), an X-value, and a confidence
level, returns a list containing the following values in the order
shown:
•
X: the given X-value
• C: the given confidence level
• DF: the degrees of freedom
• Ŷ: the mean response for the given X-value
• serr Ŷ: the standard error of the mean response
• Lower: the lower bound of the confidence interval for the
mean response
• Upper: the upper bound of the confidence interval for the
mean response
LinRegrTMeanResp(List1, List2, X-value, C-
value)