A-Level Maths: O3-03 Sample Means Hypothesis Testing Example 1 - p-value Method

www.buymeacoff...
Navigate all of my videos at www.tlmaths.com/
Like my Facebook Page: / tlmaths-1943955188961592 to keep updated
Follow me on Instagram here: / tlmaths

[@LearEdu]

hope you're well jack, just wanted to let you know i got an A at a level maths because of you! wish you the best and thank you

[@mohammedthamer9206]

shouldnt the sign for probability be less than or equal

[@m27w93]

If you have one sample of 100 bulbs, how can u use a distribution of many "sample means", which i assume means you have multiple samples and find the mean etc, but here you just have one?

[@TLMaths]

The distribution of sample means is what you would expect the sample means from a normally distributed population with given mu, sigma and n to look like. We randomly select 100 lightbulbs and calculate the mean and then determine whether this is unusual enough based on the model we’re using

[@rosh_313]

goat