HP Prime Graphing NW280AAABA manual ConfZ2prop, ConfT1mean, ConfZ1prop21, 50

	• zXh: the upper bound of the confidence interval
	• zXm: the midpoint of the confidence interval
	• std: the standard deviation
	Example:
	ConfZ1prop(21, 50, 0.95, "")
ConfZ2prop	The two-sample Normal confidence interval for the difference
	of two proportions.
	ConfZ2prop(x1,x2,n1,n2,C,[”configuration”])
	Configuration: a string that controls what results are shown
	and the order in which they appear. An empty string ""
	displays the default: all results, including headers. The options
	in the configuration string are separated by spaces.
	• h: header cells will be created
	• Z: the critical Z-value
	• zXl: the lower bound of the confidence interval
	• zXh: the upper bound of the confidence interval
	• zXm: the midpoint of the confidence interval
	• std: the standard deviation
	Example:
	ConfZ2prop(21, 26, 50, 50, 0.95, "")
ConfT1mean	The one-sample Student’s T confidence interval for a mean.
	ConfT1mean( x ,s,n,C,[”configuration”])
	Configuration: a string that controls what results are shown
	and the order in which they appear. An empty string ""
	displays the default: all results, including headers. The options
	in the configuration string are separated by spaces.
	• h: header cells will be created
	• DF: the degrees of freedom
	• T: the critical T-value
	• tXl: the lower bound of the confidence interval
	• tXh: the upper bound of the confidence interval
	• std: the standard deviation

362 Functions and commands