Summary of Statistical Hypothesis testing for Chapter 8.  - click on images to see larger pictures

Hypothesis Testing: Comparing the means of two samples with each other. Question: Is  ?
 

We Wish to Test Whether	Assumptions Confidence Interval	Test Statistics	Accept H0 if ( p-value: )
Ha  H0	sample size large (), and  known Example	Reference Table	or
Ha  H0	sample size small (), and  is unknown Estimate  from s (smallest of the two) Example	Reference Table
Ha  H0	sample size large (), and  known Example	Reference Table
Ha  H0	sample size small (), and  is unknown Estimate  from s (smallest of the two) Example	Reference Table
Ha  H0	sample size large (), and  known Example	Reference Table
Ha  H0	sample size small (), and  is unknown Estimate  from s (smallest of the two) Example	Reference Table
Pooled T-test
Ha  H0	sample size small (), and  is unknown Estimate  from s (smallest of the two) Example	Pooled t-test Reference Table	See test Above

Hypothesis Testing: Comparing the two sample proportions with each other.
 

We Wish to Test Whether	Assumptions Confidence Interval	Test Statistics	Accept H0 if ( p-value: )
:  Two-Tailed Test Accept H0 if  Reject H0 if	sample size large  () Estimate  Example	The test statistics is: , where  Reference Table	or
: Upper-Tailed Test Accept H0 if  Reject H0 if	sample size large () Estimate  Example	The test statistics is: , where  Reference Table
Lower-Tailed Test Accept H0 if  Reject H0 if	sample size large () Estimate  Example	The test statistics is: , where  Reference Table