How to do a t test (biology)

I'd make a cup of coffee or pick up a red bull before you start this one. But I do go through step-by-painful-step using an example question on how to do a t test including:
1. How to decide whether or not a t test is appropriate
2. Calculating mean, variance and t
3. determining degrees of freedom and critical value
4. making an appropriate conclusion
Episode 1: overview of all three tests (how to do statistical tests): • Statistical tests in (...
Episode 2: How to do a t-test: • How to do a t test (bi...
Episode 3. How to do a Chi-squared test: • How to do: chi-squared...
Episode 4: How to do a Spearman rank correlation test: • How to do: Spearman Ra...

[@chisxoxo4939]

i was having a break down then i thought to watch your video and thank you thank youuu

[@ncobilefakudze4168]

Ĺp

[@danialjubouri]

I don’t understand why you didn’t square the S.D value

[@SabyasachiChatterjee]

Requesting you to make a tips video for paper 5.

[@bola.a7402]

Sorry Dr. but i want to ask if we should write the null hypothesis is rejected or not ,Thank you ,youre awesome and i feel youre putting alot of effort for your students

[@LSCBiology]

Yes, you’re correct. We should do that.

[@amazkhawar3657]

5:33

[@amaan_hd9040]

What about the unpaired t test???????

[@easylearnaslevelbiology9883]

Thank you so much

[@dhirenrc1447]

Do the syllabi differ a lot between exam boards? I’m taking CIE A-Levels and I’m having trouble understanding my lecturer in college. However, your videos on respiration and genetics have helped me a lot. Do you think it’s okay to use your videos to study for the CIE spec? Thanks a lot for taking the time to post these videos, by the way. I’m really grateful.

[@LSCBiology]

The exam boards do differ in content, more-so in their exam questions. I would use my videos to understand the key concepts, but use exam board resources such as textbook to make sure I cover all the detail.

[@hanamostafa5268]

Thanks sooo much that was veryyy helpful :)

[@LSCBiology]

Glad it helped!

[@princesswhatever999]

Gold

[@SabyasachiChatterjee]

Thanks again !

[@ammargaribhayder2722]

Thank you for your hard work

[@LSCBiology]

hey, you guys are watching the vids, so thank you for YOUR hard work!

[@almaamonalsmir2764]

thank you so much

[@LSCBiology]

Welcome 😊

[@simonasvantnerova4449]

please go over paper 5. Would be really appreciated! Thanks so much, love ur videos

[@LSCBiology]

What’s in paper 5? I am going to do a video on practicals

[@simonasvantnerova4449]

@@LSCBiology Statistical tests, which you did. Reading graphs, describing an experiment, controlling factors, standard deviation etc. Which board are you doing? Im on the CIE one.

[@laibaamir1825]

The answer for x1 is 55.8 you wrote 67 instead of 65

[@LSCBiology]

thanks Laiba.

[@ellainett5437]

@@LSCBiology and you also missed out 77 at the end

[@LSCBiology]

@@ellainett5437 my bad, I guess....

[@layanjabr436]

Do you follow a specific exam board ?

[@LSCBiology]

There’s ocr and edexcel content on this channel.

[@layanjabr436]

@@LSCBiology Thank you! One more thing please -not very related question. Is there a difference between minute ventilation and ventilation rate ? As far as I understand both of these are calculated the same way (TV*Breathing rate) .

[@LSCBiology]

They are similar and CAN be the same. But while minute vent is always the volume of air inhaled/exhaled in a minute, the breathing rate can be given per minute or other unit. Also while units of minute vent will only be volume, units of breathing rate will be volume per time.

[@layanjabr436]

Thank you :')

[@barcelonaworld3787]

Hello sir. I know you don’t have time for all your students+ RUclips students but there’s a question in U6 ( written practical ) in edexcel to write an investigation and I don’t know if my method is worth any marks so I was wondering if you could check it for me ? It’ll take a max of 10 minutes of your time and I’d really appreciate it.
I could maybe send you the pictures on your email ?