Description Usage Arguments Value Author(s) References Examples
Given a sample size and prespecified Type I & II error probabilities, this function obtains the fixed-design alternative (θ_a) for testing the point null hypothesis H_0 : θ = θ_0.
1 2 3 | fixed_design.alt(test.type, side = "right", theta0,
N, N1, N2, Type1 = 0.005, Type2 = 0.2,
sigma = 1, sigma1 = 1, sigma2 = 1)
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test.type |
Character. Type of test. Currently, the package only allows
|
side |
Character. Direction of the composite alternative hypothesis. |
theta0 |
Numeric. Hypothesized value of effect size (θ_0) under H_0. Default: 0.5 in one-sample proportion tests, and 0 for others. |
N |
Positive integer. Sample size in one-sample tests. |
N1 |
Positive integer. Sample size from Group-1 in two-sample tests. |
N2 |
Positive integer. Sample size from Group-2 in two-sample tests. |
Type1 |
Numeric in [0,1]. Prespecified Type I error probability. Default: 0.005. |
Type2 |
Numeric in [0,1]. Prespecified Type II error probability. Default: 0.2. |
sigma |
Positive numeric. Known standard deviation in one-sample z tests. Default: 1. |
sigma1 |
Positive numeric. Known standard deviation for Group-1 in two-sample z tests. Default: 1. |
sigma2 |
Positive numeric. Known standard deviation for Group-2 in two-sample z tests. Default: 1. |
Numeric. The fixed-design alternative effect size (θ_a).
Sandipan Pramanik, Valen E. Johnson and Anirban Bhattacharya
Pramanik S., Johnson V. E. and Bhattacharya A. (2020+). A Modified Sequential Probability Ratio Test. [Arxiv]
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | ##### one-sample proportion test #####
## right-sided
fixed_design.alt(test.type = "oneProp", N = 30)
## left-sided
fixed_design.alt(side = "left", test.type = "oneProp", N = 30)
##### one-sample z test #####
## right-sided
fixed_design.alt(test.type = "oneZ", N = 30)
## left-sided
fixed_design.alt(side = "left", test.type = "oneZ", N = 30)
##### one-sample t test #####
## right-sided
fixed_design.alt(test.type = "oneT", N = 30)
## left-sided
fixed_design.alt(side = "left", test.type = "oneT", N = 30)
##### two-sample z test #####
## right-sided
fixed_design.alt(test.type = "twoZ", N1 = 30, N2 = 30)
## left-sided
fixed_design.alt(side = "left", test.type = "twoZ", N1 = 30, N2 = 30)
##### two-sample t test #####
## right-sided
fixed_design.alt(test.type = "twoT", N1 = 30, N2 = 30)
## left-sided
fixed_design.alt(side = "left", test.type = "twoT", N1 = 30, N2 = 30)
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