HypothesisTesting - Part 1 of 4

Hypothesis Testing
covering Right-tailed test, Left-tailed test, One-tailed test, Two-tailed test, Null hypothesis, Alternate hypothesis, Research hypothesis, Conclusion, Level of significance, Level of confidence, Alpha, Beta, Effect size,Power of test, Test statistic, Critical region, Critical value, P value, Type I error, Type II error...

Category:

Education

Tags:

• Hypothesis testing
• Right-tailed test
• Left-tailed test
• One-tailed test
• Two-tailed test
• Null hypothesis
• Alternate hypothesis
• Research hypothesis
• Conclusion
• Level of significance
• Level of confidence
• Alpha
• Beta
• Effect Size
• Power of test
• Test statistic
• Critical region
• Critical value
• P value
• Type I error
• Type II error

[leonriv]

thanks for the great video. but i'm confused about something. i thought a z critical value is equal to 1.96 not 1.645 which is the z critical value of the 90th percentile... can you clarify please? thanks again

[konan351]

The Z critical values for a two-tailed 95% interval are +/- 1.96. The Z critical value for a two-tailed 90% interval are +/- 1.645. For a one-tailed 95% interval, the critical value is +1.645 for a right-tailed and -1.645 for a left-tailed.

[Amira4904]

Usefullll thaaank you!

[flobleobble]

computer voice is so annoying. Video is useful but got half way through and got too annoyed by the voice >:[

[sharkbaitoohhaha2341]

Computer voice is killing me...

[leonriv]

@konan351 Thank you very much for this clarification. I am very grateful to you for posting this video. A++++++

[MsTwiggy314]

Thank You soooo very much this is what I need. Thank you, your are really helping me. :)

[herojha]

thanks man! finally hypothesis testing makes sense in A level biology!