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Basic probability - set theory:
Two hundred workers were asked: Would a better economy lead you to switch jobs? The results of the survey follow.
Answer
Very likely
Somewhat likely
Somewhat unlikely
Very unlikely
Don't know
Respondents
38
29
21
108
4
If a worker is chosen at random, what is the probability that he or she
(a) Is very improbable to switch jobs? (b) Is somewhat likely or very likely to switch jobs?
A typical problem statement is correlation research is _____________
An experiment was conducted to determine the effects of three different pesticides (P1,P2,P3) on the yield of three different varieties of citrus tree (V1,V2,V3).
Determine the probability that a randomly selected teacher earns more than $525 per week?
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Find the probability that in a given month:
To test the difference between two means using two mean z test.
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Should Katie conduct a between-subject ANOVA or a within-subject ANOVA? Describe your answer.
A small town has a population of 20,000 people. Among these 1,000 regularly visit a popular local bar. A sample of 100 people who visit the bar is surveyed for their annual expenditures in the bar.
Some researchers have conjectured that stem-pitting disease in peach tree seedlings might be controlled with weed and soil treatment. An experiment was conducted to compare peach tree seedling growth with soil and weeds treated with one of two her..
A check of dorm rooms on a large college campuses revealed that 38% had refrigerators, 52 percent had TVs and 21 percent had both a TV and a refrigerator. What's the probability that a randomly selected dorm room has.
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