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Hypothesis
Chapter 3
Principles of Statistical Inference
Asst Prof. Dr. Muhammad Yousaf Khan
FCPS Radiation Oncology
FRCR (UK) Clinical Oncology
SCE (UK) Oncology
PGD Oncology
CMH Rawalpindi
Tale of a fox with 2 tails ?
Agenda
I. Definition of Hypothesis
II. Type of hypotheses
III. Diference between 1-tailed versus 2 tailed hypothesis
IV. Recap
“Work hard, be kind, and
amazing things will happen.”
– by Conan
O’Brien
WhatisaHypothesis?
What is a Hypothesis
Testable statement Researcher's prediction
Assumption Preliminary impression
Hypothesis
Study: Smoking rates among males Vs females
in Islamabad
Hypothesis
Possible assumptions:
• Smoking rate higher i`n males than females (M > F)
• Smoking rate lower in females than males (F < M)
• Smoking rate different in males and females (F ≄ M)
Hypothesis
• Smoking rate higher in males than females (M > F)
• Smoking rate lower in females than males (F < M)
• Smoking rate different in males and females (F ≄ M)
• Smoking rate are equal in males and females (F = M) - Ho (Null Hypothesis)
Which one is a fox with 2-tails?
Possible hypotheses:
• Smoking rate higher i`n males than females (M > F)
• Smoking rate lower in females than males (F < M)
• Smoking rate different in males and females (F ≄ M)
Which one is a fox with 2-tails?
Possible hypotheses:
• Smoking rate higher i`n males than females (M > F)
• Smoking rate lower in females than males (F < M)
• Smoking rate different in males and females (F ≄ M)
Hypothesis
Possible assumptions:
• Smoking rate higher in males than females (M > F)
• Smoking rate lower in females than males (F < M)
• Smoking rate different in males and females (F ≄ M)
Which one is a fox with 2-tails?
Tale of a fox with 2 tails ? Recap
Thank You
Questions?
Feedback!
usaf909@yahoo.com
+92-3355533392

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Hypothesis

  • 1.
  • 2. Hypothesis Chapter 3 Principles of Statistical Inference Asst Prof. Dr. Muhammad Yousaf Khan FCPS Radiation Oncology FRCR (UK) Clinical Oncology SCE (UK) Oncology PGD Oncology CMH Rawalpindi
  • 3. Tale of a fox with 2 tails ?
  • 4. Agenda I. Definition of Hypothesis II. Type of hypotheses III. Diference between 1-tailed versus 2 tailed hypothesis IV. Recap
  • 5. “Work hard, be kind, and amazing things will happen.” – by Conan O’Brien
  • 7. What is a Hypothesis Testable statement Researcher's prediction Assumption Preliminary impression Hypothesis
  • 8. Study: Smoking rates among males Vs females in Islamabad
  • 9. Hypothesis Possible assumptions: • Smoking rate higher i`n males than females (M > F) • Smoking rate lower in females than males (F < M) • Smoking rate different in males and females (F ≄ M)
  • 10. Hypothesis • Smoking rate higher in males than females (M > F) • Smoking rate lower in females than males (F < M) • Smoking rate different in males and females (F ≄ M) • Smoking rate are equal in males and females (F = M) - Ho (Null Hypothesis)
  • 11. Which one is a fox with 2-tails? Possible hypotheses: • Smoking rate higher i`n males than females (M > F) • Smoking rate lower in females than males (F < M) • Smoking rate different in males and females (F ≄ M)
  • 12. Which one is a fox with 2-tails? Possible hypotheses: • Smoking rate higher i`n males than females (M > F) • Smoking rate lower in females than males (F < M) • Smoking rate different in males and females (F ≄ M)
  • 13. Hypothesis Possible assumptions: • Smoking rate higher in males than females (M > F) • Smoking rate lower in females than males (F < M) • Smoking rate different in males and females (F ≄ M)
  • 14. Which one is a fox with 2-tails?
  • 15. Tale of a fox with 2 tails ? Recap