Exam 18: Analysis and Interpretation: Multiple Variables Simultaneously

arrow
  • Select Tags
search iconSearch Question
flashcardsStudy Flashcards
  • Select Tags

Percentages are always calculated in the direction of the causal variable.

(True/False)
4.8/5
(38)

Regression analysis

(Multiple Choice)
4.8/5
(34)

If an organization selects two towns for a market study (one for the test and the other as a control)and measures the amount of trash in pounds per household,it must first determine the equality of the two towns using a test of

(Multiple Choice)
4.8/5
(36)

The value of the product-moment coefficient of correlation ranges from

(Multiple Choice)
4.7/5
(39)

Compare and contrast the use of analysis of variance (ANOVA)versus conducting a series of t-tests to examine differences across groups.

(Essay)
4.9/5
(35)

If we were comparing the difference between the mean number of sports drinks consumed by male vs.female athletes during a typical week,and we calculated a z value of 4.33,we would conclude that the probability of support of the

(Multiple Choice)
4.7/5
(34)

A toy storeowner hypothesizes,at the 95% level of confidence,that parents spend less than $100 on toys per visit to her store.A sample is taken,and the hypothesis test shows a z value of −1.65.We accept the hypothesis.

(True/False)
4.9/5
(41)

A statistic used to measure the strength of relationship between categorical variables is called a Cramer's V.

(True/False)
4.8/5
(40)

Let's assume we find in a study that the Pearson's correlation coefficient between number of years of education and cigarette smoking is −0.73.This means that as education level increases,

(Multiple Choice)
4.7/5
(35)

In the chi-square analysis,the greater the differences between the observed frequencies and the expected frequencies,the less likely it is that there will be a statistically significant relationship.

(True/False)
4.8/5
(39)

Regression is a robust analytical tool that can also be used when one or more dependent variables are categorical as opposed to continuous variables.

(True/False)
4.8/5
(33)

A gas station wants to compare a group of consumers' overall perceptions of service with overall perceptions of service for a nearby competitor.This situation calls for the use of

(Multiple Choice)
4.8/5
(46)

Assume that a researcher determines that a p-value of 0.01 or below determines significance.Listed below are several correlation coefficients and their respective significance levels.Which correlation coefficient demonstrates an association not likely due to chance (i.e.,significant)?

(Multiple Choice)
4.9/5
(24)

The simple regression technique in SPSS,not the researcher,specifies which variable should be the independent variable and which one should be the dependent variable.

(True/False)
4.8/5
(36)

In testing a multiple regression equation for statistical significance,the first step involves

(Multiple Choice)
5.0/5
(41)

The magnitude of the Pearson correlation coefficient indicates the direction of association,while its sign indicates the strength of the association.

(True/False)
4.7/5
(38)

Which of the following is FALSE about cross tabulations?

(Multiple Choice)
4.9/5
(42)

Which of the following concerning the Pearson chi-square test is FALSE?

(Multiple Choice)
4.8/5
(36)

The coefficient of determination represents the relative proportion of the total variation in the outcome variable that can be accounted for by the predictor variable in the regression.

(True/False)
4.8/5
(33)

In a regression analysis,determining the statistical significance of the slope involves the use of the t-statistic.

(True/False)
4.9/5
(31)
Showing 61 - 80 of 81
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)