what is the probability of the experiment that someone catches a cold in a group how to test the effect of cold how significant is the y-test? what is the significance of the x-test test what's the significance of the z test difference between chi and z test when did the odds of getting a cold change what is the odds ratio of a group who had a cold in cold weather what is a normal p value how is p value measured for a chi square test? what is the significance of chi square what is the z vs the chi square what is the average chi square test for the chi square test what is the chi square test how does chi square test compare a group's odds of catching a cold how is the odds ratio a chi square test why is the normal approximation of a z test used in the study of colds how does the chi square test determine the likelihood of a cold? why is chi square tested how many people in the test had a cold