Media Summary: ... we don't know mu so we can't use the z interval we're going to use the ... deviation uh let's see here yeah this is the standard deviate this sample standard deviation so we're going to do a That implies we use a z interval is sigma's unknown that is a
Mat130 Chapter 8 Tinterval Ex - Detailed Analysis & Overview
... we don't know mu so we can't use the z interval we're going to use the ... deviation uh let's see here yeah this is the standard deviate this sample standard deviation so we're going to do a That implies we use a z interval is sigma's unknown that is a So it's going to be our Point estimate which is 40 Oh this is this is based off of the sample so that's not um same so we don't we can't use the integral we have to use the That's going to imply a z interval okay if we have s which is the same thing but based off of a sample we have to use a
... just going to dive right into it since we don't know sigma we're going to use a
