Air traffic controllers perform the vital function of regulating the traffic af

Question

Air traffic controllers perform the vital function of regulating the traffic af passenger planes. Frequantly, air traffic controllers work long hours with little slesp. Researchers wanted to test their ablaity to make basic decisions as they become increasingly sleap deprived. Te test their abilities, a sample o 6 air traffic controllers selected and given a de sion-making skills test foll ng 12-hour, 24 hour and 48 hour sleep deprivati Hi her s o w indicate bette de een naa a a·The ta ett tr by that a-n-ra er 20 12 15 20 19 (a) Complete the F table. (Round your answers to two decimal places.) Fobt groupa Betweern groups (error Total (b) Compute a Bonferroni procedure and interpret the results. (Assume experimentwise alpha squal to 0.05. Select all that apply) There are no significant diffarances between any of the groups. There is a significant differervce in decision making for the 12-hour and 48 hour sleep deprivation conditions. eprivation candtion There is a signiricant difference in decision making for the 24-hour and 4B-hour sleep deprivation conditions. There is a significant difference in dacision making for the 12-hour and 24 hour sleep deprivation condtions. B

Explanation / Answer

applying one way ANOVA on above data:

b)

there is a significant difference in decision making for the 12 hr and the 48 hr sleep deprivation techniques

Source of Variation SS df MS F between groups 156.33 2 78.17 6.57 between persons 135.17 5 27.03 2.27 Error 119.00 10 11.90 Total 410.50 17

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