Biostatistics Study Materials

Errors in Statistics PPT (Type I and Type II Errors)


Biometric PPT

Errors in Statistics PPT
(Type I and Type II Error in Statistics PPT)

What is Level of Significance? What is Null Hypothesis? What is Alternate Hypothesis? What are statistical errors? What is the importance of ‘level of significance’ in statistical errors? Different types of statistical errors. What is Type I Error? How to avoid Type I Error? What is Type II Error? How to avoid type II Error?

Learn more: Lecture Note Statistical Errors

 

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Biostatistics Study Materials

Type I and Type II Errors in Statistics (with PPT)


Statistical Errors Notes

Errors in Statistics
(The Type I and Type II Error in Statistics)

“An error does not become truth by reason of multiplied propagation,
nor does truth become error because nobody sees it…”

Mahatma Gandhi

For the better understanding of statistical errors, it is essential to understand the concept of ‘Level of significance’, ‘Null hypothesis and ‘Alternate hypothesis’.

What is ‘Level of Significance?

Ø  DefinitionThe Level of significance is the probability of rejecting the null hypothesis in a statistical test when it is true.

Ø  The ‘Level of Significance’ in statistics is conventionally set to 0.05 to 0.01.

Ø  The level of significance in statistics denotes the confidence level of an investigator to accept or reject a null hypothesis in the statistical testing.

Ø  A level of significance 0.05 denotes 95% confidence in the decision whereas; the level of significance 0.01 denotes 99% confidence.

Ø  Such a low level of significance is selected to reduce the erroneous rejection of a null hypothesis (H0) after the statistical testing.

What is Null hypothesis?

Ø  DefinitionThe Null hypothesis is a statement that one seeks to nullify with evidence to the contrary.

Ø  The ‘Null hypothesis’ is denoted as H0.

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GATE life Sciences Study Materials

GATE XL (Life Sciences) 2017 General Aptitude Solved Question Paper with Key Download PDF


GATE General Aptitude Papers

Official / Original Previous Year (Old) Solved Question Paper of GATE Life Sciences (XL) 2017 (General Aptitude) with Answer Key and Explanations as PDF. GATE XL aspirants can download the question paper as single PDF file for your exam preparation. Please feel free to inform us for any mistakes in the answer key provided.

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GATE life Sciences Study Materials

GATE XL (Life Sciences) 2017 Food Technology Solved Question Paper with Key Download PDF


GATE Food Technology Old Question Papers

Official / Original Previous Year (Old) Solved Question Paper of GATE Life Sciences (XL) 2017 (Food Technology) with Answer Key and Explanations as PDF. GATE XL aspirants can download the question paper as single PDF file for your exam preparation. Please feel free to inform us for any mistakes in the answer key provided.

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GATE life Sciences Study Materials

GATE XL (Life Sciences) 2017 Zoology Solved Question Paper with Key Download PDF


GATE Zoology Old Question Papers

Official / Original Previous Year (Old) Solved Question Paper of GATE Life Sciences (XL) 2017 (Zoology) with Answer Key and Explanations as PDF. GATE XL aspirants can download the question paper as single PDF file for your exam preparation. Please feel free to inform us for any mistakes in the answer key provided.

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