Exam 12: Advanced Data Analysis

We have hypotheses because we suspect our results will reveal some characteristic of the population under study, not because we know that they will do so.

Tests for testing hypotheses about proportions include all, but

If the Chi-square test shows a .01 probability for the null hypothesis, the conclusion would be that you would get these results only 10 times in a hundred occasions if the null hypothesis were true.

Hypotheses are stated in which two forms?

Monotonic association means

The correlation coefficient using the Pearson product moment correlation ranges from -1 to 0.

The Pearson product moment correlation is used when both of the variables to be measured are metric.

An appropriate statistical test for hypotheses about frequency distributions is a chi-square.

_____ has as its objective the identification of key descriptors on which varied predefined events will vary.

_____ is used to measure the degree to which two variables are correlated or associated with each other when both of the variables are metric.

The appropriate statistical test for hypotheses about means with two large samples is

The actual chance that we are making a type 1 error is called the

A curvilinear pattern exists when the association between the variables can be described by a curved line.

The "r" measures the strength of an association on a -1 to +1 scale.

When any observed difference in findings is large enough that it is unlikely to have occurred due to mere chance, it is

SPSS is a statistical software program that can be used to conduct statistical tests.

We assume the null hypothesis is true until evidence suggests otherwise.

Curvilinear association means

The t-test is a type of statistical test.

Managerial significant differences occur when observed differences are considered significant enough to influence management decisions.