An experiment was designed to measure how long subjects could track a moving target on a computer screen. The target moved errat
ically according to a predetermined program. As the experiment was designed, the first 6 subjects (volunteers recruited by signs along the main campus walkway) were tested under a control condition with no distractions, the next 12 were to be tested under a flashing light distraction, and the next 18 were to be tested under a loud noise distraction. The experiment was carried out as designed. The data (times in seconds) were as follows (listed in the sequence from first to last subject). a. Compute an ANOVA table b. Find the value of the F statistic c. What is the nominal p value for the F statistic? 5653544940 42 44 42 43 40 39 35 37 38 32 50 30 32 34 40 30 31 2927 28 2626 27 25 24 20 22 19 17 10 31 Distraction Light distraction Sound Distraction
1 answer:
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Answer:
a) 0.2
b) 0.2
c) 0.5
Step-by-step explanation:
Let be the event "the car stops at the signal.
In the attached figure you can see a tree describing all possible scenarios.
For the first question the red path describes stopping at the first light but not stopping at the second. We can determine the probability of this path happening by multiplying the probabilities on the branches of the tree, thus
For the second one the blue path describes the situation
For the las situation the sum of the two green path will give us the answer
