BUAL 2650 Yan Exam 2 || 100% Verified Questions &
Answers.
what are matched pairs? correct answers aka matched samples, they are paired up so that the
participants share every characteristic except for the one under investigation
If p < 0.10 correct answers there is SOME evidence to reject H0
If p < 0.05 correct answers there is STRONG evidence to reject H0
If p < 0.01 correct answers there is VERY STRONG evidence to reject H0
if p < 0.001 correct answers there is EXTREMELY STRONG evidence to reject H0
In testing the difference between the means of two normally distributed populations using
independent random samples with equal variances, the correct test statistic to use is the
_________ correct answers T-test
when testing a hypothesis about the mean of a population of paired differences in which two
different observations are taken on the same units, the correct test statistic to use is ______
correct answers t
when testing the difference between 2 population proportions using large independent random
samples, the _______ test statistic is used correct answers z
if we are testing the hypothesis about the mean of a population of paired differences with
samples of n1=10, n2=10, the degrees of freedom for the t-statistic is _______ correct answers 9
D0 correct answers a number whose value varies depending on the situation. Often D0 will be
the number 0
Assumptions for t-test statistic correct answers - independent samples
- equal variances
- either normal populations OR large sample sizes
paired differences experiment correct answers an experiment in which we have obtained 2
different measurements on the same "n" units is called ________
ud (mu d) correct answers the mean of population of paired differences
dependent (response) variable correct answers variable we wish to understand/ predict
independent (predictor) variable correct answers the variable we will use to understand or predict
the dependent variable
Answers.
what are matched pairs? correct answers aka matched samples, they are paired up so that the
participants share every characteristic except for the one under investigation
If p < 0.10 correct answers there is SOME evidence to reject H0
If p < 0.05 correct answers there is STRONG evidence to reject H0
If p < 0.01 correct answers there is VERY STRONG evidence to reject H0
if p < 0.001 correct answers there is EXTREMELY STRONG evidence to reject H0
In testing the difference between the means of two normally distributed populations using
independent random samples with equal variances, the correct test statistic to use is the
_________ correct answers T-test
when testing a hypothesis about the mean of a population of paired differences in which two
different observations are taken on the same units, the correct test statistic to use is ______
correct answers t
when testing the difference between 2 population proportions using large independent random
samples, the _______ test statistic is used correct answers z
if we are testing the hypothesis about the mean of a population of paired differences with
samples of n1=10, n2=10, the degrees of freedom for the t-statistic is _______ correct answers 9
D0 correct answers a number whose value varies depending on the situation. Often D0 will be
the number 0
Assumptions for t-test statistic correct answers - independent samples
- equal variances
- either normal populations OR large sample sizes
paired differences experiment correct answers an experiment in which we have obtained 2
different measurements on the same "n" units is called ________
ud (mu d) correct answers the mean of population of paired differences
dependent (response) variable correct answers variable we wish to understand/ predict
independent (predictor) variable correct answers the variable we will use to understand or predict
the dependent variable
