Which of the following is not a characteristic of a Poisson experiment?
A) The experiment consists of counting the number of occurrences of an event over a period of time, area, distance, or any other type of measurement.
B) The mean of the Poisson distribution has to be the same for each interval of measurement
C) The number of occurrences during one interval has to be dependent of the number of occurrences in any other interval.
D) The intervals that are defined in the Poisson process cannot be overlapping.
Q. 2When in doubt about your assumption that the population variances are equal when comparing two population means, the best strategy is to proceed with the unequal variances test.
Indicate whether the statement is true or false
Q. 3The critical sample mean(s) is(are) the sample mean(s) that mark(s) the boundary of the rejection region.
Indicate whether the statement is true or false
Q. 4A ________ distribution is useful for calculating the probability that a certain number of events will occur over a specific interval of time or space.
A) binomial
B) Poisson
C) normal
D) hypergeometric
Q. 5Comparing the consistency between two data sets when their means are very different is best done with the _______________.
A) median
B) z-score
C) standard deviation
D) coefficient of variation
Q. 6For a two-tail hypothesis test, if the absolute value of the z- or t-test statistic exceeds the absolute value of the critical value, we reject the null hypothesis.
Indicate whether the statement is true or false
Q. 7The ________ measures a distribution's standard deviation in terms of its percentage to the mean.
A) median
B) coefficient of variation
C) variance
D) z-score
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