COHP 350 Final Exam Questions
with Accurate Answers
_______________ tests the differences between three or more different group's
means, but can never conclude that any particular mean is different from the
others correct answer one way ANOVA
_________________ is the algebraic relationship between two variables correct
answer regression
_________________ tests the difference between an actual sample and another
hypothetical distribution correct answer chi squared
__________________ is the difference between the original data points and the
regression line correct answer residual
________________________________ is the amount of variation that is
explained by the regression line correct answer coefficient of determination
_____% are within 1 standard deviation
_____% are within 2 standard deviations
______% are within 3 standard deviations correct answer 68
95
99.7
A __________ is used to approximate a population parameter.
, A _____________ is a range that is likely to contain the true value of the
population. correct answer point estimate
confidence interval
A ___________________ is when a sample is collected from a population and
some members are not as likely to be selected as others. correct answer sampling
bias
A bar graph sorted in order by category (largest to smallest). correct answer
Pareto chart
A(n) _____________ is a number that is a property of a population, whereas a
______________ is a number that represents a property of the sample. correct
answer parameter, statistic
A(n) _______________ tests differences in means between two groups, standard
deviation is unknown. correct answer student t test
A(n) _________________ tests differences in variances between two groups,
standard deviation is known. correct answer f test
Categories, colors, names, labels, and yes or no responses are __________ level
data.
Nominal data that can be sorted, but that we are unable to measure differences
between the data, such as top 5 national parks is called __________ data.
____________ data is similar to ordinal data except that the differences can be
measured, such as temperature.
with Accurate Answers
_______________ tests the differences between three or more different group's
means, but can never conclude that any particular mean is different from the
others correct answer one way ANOVA
_________________ is the algebraic relationship between two variables correct
answer regression
_________________ tests the difference between an actual sample and another
hypothetical distribution correct answer chi squared
__________________ is the difference between the original data points and the
regression line correct answer residual
________________________________ is the amount of variation that is
explained by the regression line correct answer coefficient of determination
_____% are within 1 standard deviation
_____% are within 2 standard deviations
______% are within 3 standard deviations correct answer 68
95
99.7
A __________ is used to approximate a population parameter.
, A _____________ is a range that is likely to contain the true value of the
population. correct answer point estimate
confidence interval
A ___________________ is when a sample is collected from a population and
some members are not as likely to be selected as others. correct answer sampling
bias
A bar graph sorted in order by category (largest to smallest). correct answer
Pareto chart
A(n) _____________ is a number that is a property of a population, whereas a
______________ is a number that represents a property of the sample. correct
answer parameter, statistic
A(n) _______________ tests differences in means between two groups, standard
deviation is unknown. correct answer student t test
A(n) _________________ tests differences in variances between two groups,
standard deviation is known. correct answer f test
Categories, colors, names, labels, and yes or no responses are __________ level
data.
Nominal data that can be sorted, but that we are unable to measure differences
between the data, such as top 5 national parks is called __________ data.
____________ data is similar to ordinal data except that the differences can be
measured, such as temperature.
