BANA 2081 FINAL EXAM QUESTIONS & ANSWERS
Scatter Diagram - Answer -a graphical presentation between two variables
What will the sum of the percent frequencies for all classes always equal? - Answer -
100
A box plot is a graphical representation of data that is based on - Answer -a five
number summary
Since a sample is the subset of the population, the sample mean ______ the mean of
the population - Answer -varies around
Interquartile Range - Answer -the difference between the third and the first quartile
The key difference between the binomial and hypergeometric distribution is that, with
the hypergeometric distribution, the - Answer -probability of success changes from trial
to trial
The probability that a continuous random variable takes any specific value - Answer -is
equal to zero
Bayes theorem is used to compute - Answer -posterior probabilities
The intersection of 2 mutually exclusive events - Answer -must always equal to 0
The sum of the probabilities of 2 complementary events is - Answer -1.0
The purpose of statistical inference is to provide information about the - Answer -
population based upon information contained in the sample
As the sample size becomes larger, the sampling distribution of the same mean
approaches a(n) - Answer -normal distribution
In computing the standard error of the mean, the finite population correction factor is
used when - Answer -the sample size compared to the population size is greater than
5%
In cluster sampling - Answer -all elements within the randomly selected clusters form
the sample
To decrease the margin of error, the sample size - Answer -should increase
In hypothesis testing, the tentative assumption about the population parameter is -
Answer -the null hypothesis
Scatter Diagram - Answer -a graphical presentation between two variables
What will the sum of the percent frequencies for all classes always equal? - Answer -
100
A box plot is a graphical representation of data that is based on - Answer -a five
number summary
Since a sample is the subset of the population, the sample mean ______ the mean of
the population - Answer -varies around
Interquartile Range - Answer -the difference between the third and the first quartile
The key difference between the binomial and hypergeometric distribution is that, with
the hypergeometric distribution, the - Answer -probability of success changes from trial
to trial
The probability that a continuous random variable takes any specific value - Answer -is
equal to zero
Bayes theorem is used to compute - Answer -posterior probabilities
The intersection of 2 mutually exclusive events - Answer -must always equal to 0
The sum of the probabilities of 2 complementary events is - Answer -1.0
The purpose of statistical inference is to provide information about the - Answer -
population based upon information contained in the sample
As the sample size becomes larger, the sampling distribution of the same mean
approaches a(n) - Answer -normal distribution
In computing the standard error of the mean, the finite population correction factor is
used when - Answer -the sample size compared to the population size is greater than
5%
In cluster sampling - Answer -all elements within the randomly selected clusters form
the sample
To decrease the margin of error, the sample size - Answer -should increase
In hypothesis testing, the tentative assumption about the population parameter is -
Answer -the null hypothesis
