Air traffic controllers perform the vital function of regulatingthe traffic of passenger planes. Frequently, air trafficcontrollers work long hours with little sleep. Researchers wantedto test their ability to make basic decisions as they becomeincreasingly sleep deprived. To test their abilities, a sample of 6air traffic controllers is selected and given a decision-makingskills test following 12-hour, 24-hour, and 48-hour sleepdeprivation. Higher scores indicate better decision-making skills.The table lists the hypothetical results of this study.

SleepDeprivation
12Hours	24Hours	48Hours
24	18	17
19	23	21
35	23	23
28	21	14
23	15	17
22	22	15

(a) Complete the F-table. (Round your answers to twodecimal places.)

Source of Variation	SS	df	MS	Fobt
Between groups
Between persons
Within groups (error)
Total

2.) Seasonal affective disorder (SAD) is a type of depressionduring seasons with less daylight (e.g., winter months). Onetherapy for SAD is phototherapy, which is increased exposure tolight used to improve mood. A researcher tests this therapy byexposing a sample of SAD patients to different intensities of light(low, medium, high) in a light box, either in the morning or atnight (these are the times thought to be most effective for lighttherapy). All participants rated their mood following this therapyon a scale from 1 (poor mood) to 9 (improvedmood). The hypothetical results are given in the followingtable.

		Light Intensity
		Low	Medium	High
Timeof Day	Morning	5	5	7
		6	6	8
		4	4	6
		7	7	9
		5	9	4
		6	8	8
	Night	4	6	9
		8	8	7
		6	7	6
		7	5	8
		4	9	7
		3	8	6

(a) Complete the F-table and make a decision to retainor reject the null hypothesis for each hypothesis test. (Round youranswers to two decimal places. Assume experimentwise alpha equal to0.05.)

Source of Variation	SS	df	MS	F
Time ofday
Intensity
Timeof day × Intensity
Error
Total

Compute Tukey's HSD to analyze the significant main effect.

The critical value is  for each pairwisecomparison.

Summarize the results for this test using APA format.