RESM 540 questions and answers
graded A+ passed
T/F: For the average nearest neighbor statistic, the null hypothesis states that features are
randomly distributed. - correct answer ✔✔T
When is the average nearest neighbor most effective? - correct answer ✔✔When comparing
different features in a fixed study area
T/F: Average nearest neighbor is best used when the features of interest have no interaction
with each other. - correct answer ✔✔True
Which of the features below are two dimensional? - correct answer ✔✔Polygon
Grid cells
Spatial statistics provides the ability to: - correct answer ✔✔ALL:Rely on statistics to provide a
more objective map display
Highlight patterns and relationships in the data
Use space or location as a fundamental component of the stats
Why do we need to have our data in a projected format? - correct answer ✔✔Geographic
coordinates do not accurately represent shape, area, distance and direction TRUE
-Spatial statistics rely on distance relationships and calculations for testing the hypothesis of a
random pattern TRUE
-Projected coordinates systems minimize distortions TRUE
T/F: The average nearest neighbor statistic was limited for analyzing patterns in that it only
considered the points themselves and no attributes of the points. - correct answer ✔✔True
, Which of the following statements are true assuming the p-value returned using Gettis-Ord stat
is small and statistically significant? - correct answer ✔✔ALL: -The higher (or lower) the z-score
the stronger the intensity of the clustering
-A z-score near zero indicates no apparent clustering within the study area
-A positive z-score indicates clustering of high values
-A negative z-score indicates clustering of low values
How does spatial statistics integrate space and spatial relationships directly into their
mathematics? - correct answer ✔✔By requiring the user to select a value for the
Conceptualization of Spatial Relationships parameter prior to analysis
The best way to choose an appropriate distance band is to let the data show you with the
incremental spatial autocorrelation tool - correct answer ✔✔the first peak value should be
chosen
T/F: A reason to use the Ripleys K function is to find the distance in which features are
statistically significant dispersed or clustered - correct answer ✔✔True
T/F: It is fine to have polygons that are used for the Ripley's K function to be in widely differing
sizes - correct answer ✔✔False
The boundary correction method is needed because: - correct answer ✔✔the number of
neighbors on the edges of a study area can underestimated
To be sure we have clustered or dispersed pattern - correct answer ✔✔we need to make sure
out k function is outside of the confidence interval
Which of the following are true? - correct answer ✔✔All:
graded A+ passed
T/F: For the average nearest neighbor statistic, the null hypothesis states that features are
randomly distributed. - correct answer ✔✔T
When is the average nearest neighbor most effective? - correct answer ✔✔When comparing
different features in a fixed study area
T/F: Average nearest neighbor is best used when the features of interest have no interaction
with each other. - correct answer ✔✔True
Which of the features below are two dimensional? - correct answer ✔✔Polygon
Grid cells
Spatial statistics provides the ability to: - correct answer ✔✔ALL:Rely on statistics to provide a
more objective map display
Highlight patterns and relationships in the data
Use space or location as a fundamental component of the stats
Why do we need to have our data in a projected format? - correct answer ✔✔Geographic
coordinates do not accurately represent shape, area, distance and direction TRUE
-Spatial statistics rely on distance relationships and calculations for testing the hypothesis of a
random pattern TRUE
-Projected coordinates systems minimize distortions TRUE
T/F: The average nearest neighbor statistic was limited for analyzing patterns in that it only
considered the points themselves and no attributes of the points. - correct answer ✔✔True
, Which of the following statements are true assuming the p-value returned using Gettis-Ord stat
is small and statistically significant? - correct answer ✔✔ALL: -The higher (or lower) the z-score
the stronger the intensity of the clustering
-A z-score near zero indicates no apparent clustering within the study area
-A positive z-score indicates clustering of high values
-A negative z-score indicates clustering of low values
How does spatial statistics integrate space and spatial relationships directly into their
mathematics? - correct answer ✔✔By requiring the user to select a value for the
Conceptualization of Spatial Relationships parameter prior to analysis
The best way to choose an appropriate distance band is to let the data show you with the
incremental spatial autocorrelation tool - correct answer ✔✔the first peak value should be
chosen
T/F: A reason to use the Ripleys K function is to find the distance in which features are
statistically significant dispersed or clustered - correct answer ✔✔True
T/F: It is fine to have polygons that are used for the Ripley's K function to be in widely differing
sizes - correct answer ✔✔False
The boundary correction method is needed because: - correct answer ✔✔the number of
neighbors on the edges of a study area can underestimated
To be sure we have clustered or dispersed pattern - correct answer ✔✔we need to make sure
out k function is outside of the confidence interval
Which of the following are true? - correct answer ✔✔All:
