Question: No training Mean=45.82 SD=10.02 TSA < 3 mo Mean=54.18 SD=9.41 TSA >2 yr Mean=60.36 SD=9.77 TSA supervisors Mean=47.45 SD= 8.60 Total Mean=51.95 SD=10.84 1. Consider

No training Mean=45.82 SD=10.02

TSA < 3 mo Mean=54.18 SD=9.41

TSA >2 yr Mean=60.36 SD=9.77

TSA supervisors Mean=47.45 SD=8.60

Total Mean=51.95 SD=10.84

1. Consider the above information on accuracy of detecting weapons in luggage by four groups of people: People with no training, TSA agents with less than 3 months on the job, TSA agents with more than 2 years on the job, and TSA supervisors. Top score possible was 64. There are 11 people in each group.

a. State the null and alternative hypotheses.

b. Find your critical value(s) at a criterion of .01.(Remember if it is not available in the table to pick the closest one.) Draw the appropriate picture.

c. Complete the ANOVA table to get the test statistic.

Sums of squares df Mean square F

Between #

Error

Total

d. Compare it to the appropriate critical value and make your conclusion.

e. Compute effect size.

f. If it necessary (and I'll bet it is!) to compute any other statistics to interpret your results please do so. Explain why you do or do not need to do so.

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