00:01
Hey there, welcome to numerate.
00:03
We're given a problem here where we assume the actual value of mule.
00:09
The population mean is 41 .8 hours.
00:12
What is the probability that we accept the null hypothesis? so what we're given here is that our population mean actually is equal to 41 .8 hours.
00:30
And we're asked to find a probability that we accept the null hypothesis.
00:36
So in order to accept the null hypothesis, so accept h -nol, we would have to know our test statistic value, and our degrees of freedom, d .f, and what kind of test it is, right? so in which we need to know our significance level as well.
01:19
So for this we either have a z score or t score equation, but i'm going to denote it as t in this case, where we have t equals.
01:32
So i'm going to label this.
01:39
T equals your sample mean minus your population mean divided by your sample standard, your deviation, divided by the square root of n...