ci_size: Confidence Interval (Size)

In shunyao643/ab1202ay2021: Basic Statistic Tool for AB1202

Description

ci_size returns the confidence interval given a confidence level, sample size, mean and standard deviation.

Usage

ci_size(confidence_level, sample_size, mean, pop_sd, unknown_pop_sd = TRUE)

Arguments

confidence_level	value, e.g. 0.95 or 95 for 95% confidence level
sample_size	integer, e.g. 30
mean	integer, e.g. 10
pop_sd	value, e.g. 3.14
unknown_pop_sd	boolean, e.g. FALSE (defaults to TRUE otherwise)

Details

By default, the computation assumes that sample standard deviation is used - if using population standard deviation (where it is known or given), set unknown_pop_sd to FALSE.

confidence_level accepts values for both frequency as well as probabilities.

Examples

ci_size(0.95,30,10,3,TRUE)

shunyao643/ab1202ay2021 documentation built on Feb. 26, 2021, 8:53 a.m.