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Shawn Hemelstrand
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I know itsthat it is generally accepted that the 2 sidedtwo-sided test is the Gold Standard"Gold Standard". However, I just wanted to see if there are real life, practical applications of the 1 sidedone-sided test in the real world, or if this only exists in academia.

Edit: "generally"Generally accepted / Gold Standard" in the sense of being the default recommendation in the book Introduction to Statistical Learning, 2nd ed., p.558, footnote 8:

A one-sided $p$-value is the probability of seeing such an extreme value of the test statistic; e.g. the probability of seeing a test statistic greater than or equal to $T$=2.33. A two-sided $p$-value is the probability of seeing such an extreme value of the absolute test statistic; e.g. the probability of seeing a test statistic greater than or equal to 2.33 or less than or equal to −2.33. The default recommendation is to report a two-sided $p$-value rather than a one-sided $p$-value, unless there is a clear and compelling reason that only one direction of the test statistic is of scientific interest.

I know its generally accepted that the 2 sided test is the Gold Standard. However, I just wanted to see if there are real life, practical applications of the 1 sided test in the real world, or this only exists in academia.

Edit: "generally accepted / Gold Standard" in the sense of being the default recommendation in Introduction to Statistical Learning, 2nd ed., p.558, footnote 8:

A one-sided $p$-value is the probability of seeing such an extreme value of the test statistic; e.g. the probability of seeing a test statistic greater than or equal to $T$=2.33. A two-sided $p$-value is the probability of seeing such an extreme value of the absolute test statistic; e.g. the probability of seeing a test statistic greater than or equal to 2.33 or less than or equal to −2.33. The default recommendation is to report a two-sided $p$-value rather than a one-sided $p$-value, unless there is a clear and compelling reason that only one direction of the test statistic is of scientific interest.

I know that it is generally accepted that the two-sided test is the "Gold Standard". However, I just wanted to see if there are real life, practical applications of the one-sided test in the real world, or if this only exists in academia.

Edit: "Generally accepted / Gold Standard" in the sense of being the default recommendation in the book Introduction to Statistical Learning, 2nd ed., p.558, footnote 8:

A one-sided $p$-value is the probability of seeing such an extreme value of the test statistic; e.g. the probability of seeing a test statistic greater than or equal to $T$=2.33. A two-sided $p$-value is the probability of seeing such an extreme value of the absolute test statistic; e.g. the probability of seeing a test statistic greater than or equal to 2.33 or less than or equal to −2.33. The default recommendation is to report a two-sided $p$-value rather than a one-sided $p$-value, unless there is a clear and compelling reason that only one direction of the test statistic is of scientific interest.

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civilstat
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I know its generally accepted that the 2 sided test is the Gold Standard. However, I just wanted to see if there are real life, practical applications of the 1 sided test in the real world, or this only exists in academia.

Edit: "generally accepted / Gold Standard" in the sense of being the default recommendation in Introduction to Statistical Learning, 2nd ed., p.558, footnote 8:

A one-sided $p$-value is the probability of seeing such an extreme value of the test statistic; e.g. the probability of seeing a test statistic greater than or equal to $T$=2.33. A two-sided $p$-value is the probability of seeing such an extreme value of the absolute test statistic; e.g. the probability of seeing a test statistic greater than or equal to 2.33 or less than or equal to −2.33. The default recommendation is to report a two-sided $p$-value rather than a one-sided $p$-value, unless there is a clear and compelling reason that only one direction of the test statistic is of scientific interest.

I know its generally accepted that the 2 sided test is the Gold Standard. However, I just wanted to see if there are real life, practical applications of the 1 sided test in the real world, or this only exists in academia.

I know its generally accepted that the 2 sided test is the Gold Standard. However, I just wanted to see if there are real life, practical applications of the 1 sided test in the real world, or this only exists in academia.

Edit: "generally accepted / Gold Standard" in the sense of being the default recommendation in Introduction to Statistical Learning, 2nd ed., p.558, footnote 8:

A one-sided $p$-value is the probability of seeing such an extreme value of the test statistic; e.g. the probability of seeing a test statistic greater than or equal to $T$=2.33. A two-sided $p$-value is the probability of seeing such an extreme value of the absolute test statistic; e.g. the probability of seeing a test statistic greater than or equal to 2.33 or less than or equal to −2.33. The default recommendation is to report a two-sided $p$-value rather than a one-sided $p$-value, unless there is a clear and compelling reason that only one direction of the test statistic is of scientific interest.

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Katsu
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Practical (not theoretical) examples of where a 1 sided test would be valid?

I know its generally accepted that the 2 sided test is the Gold Standard. However, I just wanted to see if there are real life, practical applications of the 1 sided test in the real world, or this only exists in academia.