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Thank you so much man! Why is it that no one else, not even my prof, can explain it so clearly and concisely. Best 5 and a half minutes I've ever spent! Thank you!!
fr my professor has been telling our class the way to tell is by finding different key descriptive words of the study in the first sentence of the problem. Like I get what she means but it makes it so much more confusing than this simple black and white way to tell.
1:05 whenever alternative hypothesis doesn't equal some value, you're going to have a two-tailed test 1:34 the shaded area represent the rejection region, the area is not shaded is fail to reject region Z values separate reject and non-reject regions, which represent critical values 2:14 confidence level c = 1-alpha, alpha is the significance level, alpha is splited into two regions 2:50 to determine whether reject or not reject the null hypothesis, you need to calculate the z value and compare it to the critical value this other z value is called Zc the calculated Z value which is associated with the test statistics if that z value is greater than the critical value, then you should reject the null hypothesis 4:35 if the alternative hypothesis is stating less than some value, you need to use the left-tailed test for c=95%, alpha is going to be a completely 0.05
Hello I just wanted to say Thank you so much!! I got B+ because of you in stats in first one now I am back for second one thank you so much truly you explain better than my Professor ever does he just rushes everything! Thank you again for such simple videos and explanation easy to understand 🙏
I love your videos! Thank you so much for describing stats in an approachable way! You make me feel that I can grasp all these concepts, because they're actually quite easy to understand. Meanwhile, my university teacher makes everything so complicated and boring.
You've saved me more times than I can remember throughout my academic career. I'm indebted to you. I don't know who you are, but you have a seat at my families table regardless of anything.
I love math a lot. But my teacher manages to teach the most boring class and I started to hate math. Thanks man, you explained what I learned in 1 semester in 1 video.
heyyy! love your videos so muchhh. You're literally a godfather to the uni students. Could you please make videos on estimation in statistics like point and interval estimation, method of moments and method of maximum likelihood. It would be very helpful for us and very generous of youuu!
Just watching this as review but… Jesus lord god almighty you conveyed this concept so much more clearly and succinctly than any professor or textbook.
Question: What if my Ha is not equal. But I still want to know if its less than or greater than? Do i conduct both one tail and two tailed tests? Btw, thank you. Great videos!
thanks so much for this like fr, my instructor is an absolute shit in teaching, the most incompetent one I've seen in my entire life, worse than high school teachers
Hello. Great video. However I'm confused about my hypothesis and whether it's directional or now. My hypothesis is that variable A predicts variable B. Does that make it one tailed? I'm not sure about how this works in predictive hypotheses so would be grateful if you could help out.
I think in simpler explanation it would be *If it is less than or more than to- one tailed *If it is finding the relationship or differences then it is two-tailed ??
Final Exams and Video Playlists: www.video-tutor.net/
Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections
Next Video: th-cam.com/video/Hag0GW9B6EY/w-d-xo.html
Nice!
You are still active in the older videos
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indeed
Thank you so much man! Why is it that no one else, not even my prof, can explain it so clearly and concisely. Best 5 and a half minutes I've ever spent! Thank you!!
fr my professor has been telling our class the way to tell is by finding different key descriptive words of the study in the first sentence of the problem. Like I get what she means but it makes it so much more confusing than this simple black and white way to tell.
I'd like to see this man one day . He made engineering so easy. Thank you
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1:05 whenever alternative hypothesis doesn't equal some value, you're going to have a two-tailed test
1:34 the shaded area represent the rejection region, the area is not shaded is fail to reject region
Z values separate reject and non-reject regions, which represent critical values
2:14 confidence level c = 1-alpha, alpha is the significance level, alpha is splited into two regions
2:50 to determine whether reject or not reject the null hypothesis, you need to calculate the z value and compare it to the critical value
this other z value is called Zc the calculated Z value which is associated with the test statistics
if that z value is greater than the critical value, then you should reject the null hypothesis
4:35 if the alternative hypothesis is stating less than some value, you need to use the left-tailed test
for c=95%, alpha is going to be a completely 0.05
thank you this helped me make notes
I don't understand critical value.
i should be paying you, not my university 😒
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Hello I just wanted to say Thank you so much!! I got B+ because of you in stats in first one now I am back for second one thank you so much truly you explain better than my Professor ever does he just rushes everything! Thank you again for such simple videos and explanation easy to understand 🙏
You managed to explain in 5 minutes what my lecturer couldn't in 20. THANKS!
I love your videos! Thank you so much for describing stats in an approachable way! You make me feel that I can grasp all these concepts, because they're actually quite easy to understand. Meanwhile, my university teacher makes everything so complicated and boring.
I couldn't understand One Tailed and Two Tailed Tests, but with your explaining I understood it as fast
Thank you so much
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what if the z value is equal to the critical value do we accept or reject?
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I love math a lot. But my teacher manages to teach the most boring class and I started to hate math. Thanks man, you explained what I learned in 1 semester in 1 video.
This isn't math?
heyyy! love your videos so muchhh. You're literally a godfather to the uni students. Could you please make videos on estimation in statistics like point and interval estimation, method of moments and method of maximum likelihood. It would be very helpful for us and very generous of youuu!
I’ve been watching you for so long. Thank you so much, you’re so proficient at explaining everything.
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Just watching this as review but… Jesus lord god almighty you conveyed this concept so much more clearly and succinctly than any professor or textbook.
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Excellent explanation of the difference between these tailed tests. Thanks so much 🙏
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Question: What if my Ha is not equal. But I still want to know if its less than or greater than? Do i conduct both one tail and two tailed tests?
Btw, thank you. Great videos!
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thanks so much for this like fr, my instructor is an absolute shit in teaching, the most incompetent one I've seen in my entire life, worse than high school teachers
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Hello. Great video. However I'm confused about my hypothesis and whether it's directional or now. My hypothesis is that variable A predicts variable B. Does that make it one tailed? I'm not sure about how this works in predictive hypotheses so would be grateful if you could help out.
Have u figured it out？
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I think in simpler explanation it would be
*If it is less than or more than to- one tailed
*If it is finding the relationship or differences then it is two-tailed
??
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wait so if the Z value is in the unshaded region we fail to reject the null hypothesis...aka that means that the mean of the potato chips *is* 100g?
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