Package index

Confidence Intervals

ci_mu() ci_p() ci_var() ci_lambda_exp()

Confidence interval functions

Hypothesis Tests

z_test_mu() t_test_mu() p_test() var_test_chisq()

Hypothesis-testing functions

Power

power_z_mu() power_t_mu() power_p_z() power_var_chisq() power_var_ratio_F()

Power functions

Required Sample Size

n_required_from_power() n_required_z_mu() n_required_t_mu() n_required_p_z() n_required_var_chisq() n_required_var_ratio_F()

Sample-size functions for target power

Width Planning

n_width_mu_z() n_width_p_wald() n_width_mu_t()

Confidence-interval width planning functions

Categorical Data

chisq_gof_probs() chisq_gof_dist() chisq_table() table_props()

Chapter 14 chi-square and contingency-table functions

Shape

skew() kurt()

Descriptive shape functions