two_samp_t_test_leq: Performs lower-tailed 2-sample t-test

In azc242/collegestats: Common functions used in college statistics classes

Description

Tests the alternate hypothesis that states the H0 value is less than H0_diff (usually 0), resulting in a lower-tailed 1-sided

Tests the alternate hypothesis that states the H0 value is greater than H0_diff (usually 0), resulting in a upper-tailed 1-sided

Usage

two_samp_t_test_leq(
  samp1_mean,
  samp2_mean,
  samp1_size,
  samp2_size,
  s1,
  s2,
  H0_diff = 0,
  alpha = 0.05,
  df = NULL
)

two_samp_t_test_leq(
  samp1_mean,
  samp2_mean,
  samp1_size,
  samp2_size,
  s1,
  s2,
  H0_diff = 0,
  alpha = 0.05,
  df = NULL
)

Arguments

samp1_mean	mean of the first group
samp2_mean	mean of the first group
samp1_size	mean of the first group
samp2_size	mean of the first group
s1	sample standard deviation of the first group
s2	sample standard deviation of the second group
H0_diff	H0 value that tests the difference, defaults to 0 (testing if two samples have equal means
alpha	significance level, or the probability of making a type 1 error. Defaults to 0.05
df	degrees of freedom, defaults to NULL (program will calculate it if not specified)
Ha	direction of the test. Accepts either ">", "<", or "!="

Value

data frame containing p-value, z-score, and result of the hypothesis test

data frame containing p-value, z-score, and result of the hypothesis test

azc242/collegestats documentation built on Dec. 31, 2020, 7:54 p.m.