Suppose a specialist in the field of signal detection you know that the population of air traffic control operators has a mean identification rate of 82/100. You have just developed a new training system that will increase the number of targets correctly identified. Using the data from 15 trainees listed below, conduct a single sample t-test to determine whether they perform signigficantly different from the population of air traffic control opperators trained using the traditional method.
a.what is the effect size (you will need to compute Cohen's d from data given in the spss output table)
b. write the results section for your findings. include the descriptive statistics, type of statistical test and results of the test, effect size, cohen's d and the confidence interval.
data
88, 86, 91, 79, 91, 85, 92, 80, 82, 87, 77, 89, 82, 83, 94