Chi-Square Test for Independence

Question 1:

A researcher is interested in knowing if there are differences between the incidence of accidents among experienced and inexperienced pilots. They were able to collect 62 responses from a random number of pilots. Among them, 17 experienced pilots were in accidents, 26 were not; 13 inexperienced pilots were in accidents, 6 were not. Construct a contingency table. Run the Chi-Square test for independence using the calculator in the Module.

State your findings and their significance. Do not forget to give summary statistics in APA format.

Question 2:

A researcher has found that pilots taking an over the counter antihistamine have poor reaction times. They performed an experiment on 22 pilots: 11 took the medication and 11 did not. Their reaction times to a command by Air Traffic Control was considered to be adequate or inadequate. Among those taking the medication, 8 were rated inadequate and 3 adequate. Among those not-taking the medication, 10 were rated adequate and only 1 inadequate. Construct a contingency table. Run the Chi-Square test for independence using the calculator in the module. Construct a contingency table.

· State your findings and their significance. Do not forget to give summary statistics in APA format.

· What is the problem with this research study? Is the Chi-Square test appropriate? Why or why not? What could the researcher do to potentially rectify the problem?