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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?
On a particular day during the most recent golf tournament, the organizer placed the whole (pin) in 0 back left corner of the green. 64 golfers played the hole with the new placement on that day. Find out the probability of the sample average numb..
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.
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If it is determined that there is no difference between the population mean being represented by the sample and the mean of the population at large, then:
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
Write down the probability of that the median of the sample or average medians is greater or more than 320 minutes?
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At the 0.05 level of significance, is there evidence of a significant relationship between the age groups and where people primarily get their news? If so explain the relationship.
Assume that the measurements came from a normal distribution. The variability of the manufacturing process is unknown means the same as the standard deviation is unknown.
A test on zoology is to be given next week. Suppose 75 percent of the students study for the test and 25 percent do not. If a student studies for the exam, the probability that he or she will pass is 0.90. If the student does not study, the pro..
Perform the trend analysis of Pf with incrementally increasing number of the simulation cycles, and calculate the statistical uncertainty in the estimate expressed as the coefficient of variation.
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