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Interval Estimate of Population Mean with Unknown Variance
A tutorial on computing the interval estimate of population mean at given confidence level. The variance of the population is assumed to be unknown.
Tags:
Elementary Statistics with R
confidence level
interval estimate
margin of error
Student t distribution
c
length
library
mean
na.omit
qt
sd
sqrt
t.test
MASS
survey
Standard Deviation
A tutorial on computing the standard deviation of an observation variable in statistics.
Tags:
Elementary Statistics with R
mean
standard deviation
variance
sd
faithful
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Interval Estimate of Population Mean with Known Variance
Interval Estimate of Population Mean with Unknown Variance
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Lower Tail Test of Population Mean with Known Variance
Upper Tail Test of Population Mean with Known Variance
Two-Tailed Test of Population Mean with Known Variance
Lower Tail Test of Population Mean with Unknown Variance
Upper Tail Test of Population Mean with Unknown Variance
Two-Tailed Test of Population Mean with Unknown Variance
Lower Tail Test of Population Proportion
Upper Tail Test of Population Proportion
Two-Tailed Test of Population Proportion
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Type II Error in Lower Tail Test of Population Mean with Known Variance
Type II Error in Upper Tail Test of Population Mean with Known Variance
Type II Error in Two-Tailed Test of Population Mean with Known Variance
Type II Error in Lower Tail Test of Population Mean with Unknown Variance
Type II Error in Upper Tail Test of Population Mean with Unknown Variance
Type II Error in Two-Tailed Test of Population Mean with Unknown Variance
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