This video may be old but will live on for confused stats students like me. Thank you.

@dmcguckian

2 жыл бұрын

That’s good to read!

You are the best!!!!

@dmcguckian

Жыл бұрын

Thanks 😊

what if my p-value is less than my alpha? what's the written conclusion?

Your video clear my Problem it helps me allot thank you so much

@dmcguckian

3 жыл бұрын

I’m glad it was helpful!

Thank you

@dmcguckian

Жыл бұрын

You’re welcome

hello what if my problem does not include the x value how would I be able to find that? Problem only includes H0: p=0.5, p-value = 0.025, and n=225.

@dmcguckian

Жыл бұрын

If you are given a sample proportion, p, you do not need x. X is used to calculate p-hat (the sample proportion) when it is not given.

1.5.05 on z score table is 9394 not 4394 if I'm mistaken ?

@dmcguckian

9 ай бұрын

Every z table provides different areas under the curve. The table you must be looking at give the area from negative infinity to the z score. My table gives the area from the mean to the z score.

Why did u subtract .4394 from .5000?

@dmcguckian

Жыл бұрын

In that step, I am using a z table to find the tail area I need. If you have a z table that provides tail areas, you could look up that area directly. However, the table I used only gives the area from the mean to the z score you look up. Since the upper half of the curve has 50% of the area, I can subtract the table value from 0.50 to find the tail area beyond the z value.