Hypothesis testing for Normal distribution examples | one tailed and two tailed test | ExamSolutions

Hypothesis testing for Normal distribution

In this tutorial, we do more examples of hypothesis testing for one-tailed and two-tailed tests using the p values method.

[suzanarubayet]

Thank you.. Really it is very much appreciative the way you teach the complex maths...duah from the heart.

[theshivm]

Great video, exactly what I needed for some upcoming assessments. Also, so when it comes to the 2 tailed test, the only differences are that you halve the significance level, and that we need to identify whether it's a lower/upper tail test instead of the question telling us?

[tallula]

amazingly helpful video, thank you so much. very clear !

[billyreadman]

For Q2 why put the lower bound as any large negative number when the diameter of the circular cardboard disks could not be negative, would using 0 get an incorrect answer?

[justyndesouza]

Thanks a lot Exam solution, this helped me to better understand the topic!!

[firdovsihasanzada]

great video, but you shoud have multiplied p-value by 2 in the second example

[sarahchopra]

Hi there, can u please show manually how you got p(x'<= 8.95) as 0.033. I normalized this value and got z = -2.5 and corresponding value 0.062

[libbythomas]

I don't understand why you square rooted 50 in the first example. as you are given the SD of 1.21 I thought the SD in your calculator would be 1.21/50?

[kathyk]

hey, how do you know what sign to you should use in 11:23