Question

Tikal National Park in Guatemala is heavily visited by tourists. Does the disturbance affect animal densities? To investigate, Hidinger (1996) compared the densities of various bird and mammal species in places immediately next to heavily visited ruins to places in the park that were rarely visited by tourists. The mean densities (in animals/km^2) are found in the accompanying table. The table also lists the P-value associated with a test of the null hypothesis that the two types of plots do not differ in mean density. Assume that α = 0.05.

Name ONE species that shows an increase in numbers near the ruins that is NOT significant.

For the Tinamou, does it appear to be a higher mean density far from the ruins?  (yes or no) Is it a significant difference?  (yes or no)

The species column represent what type of data?  (nominal, ordinal, ratio or interval)

Mean density represents what type of data?  (nominal, ordinal, ratio or interval) Is it discrete or continuous?  (discrete or continuous)

What kind of graph would be the best way to display this data?  (scatter plot, line graph, bar graph, histogram, heat map)

Answer 1

Answer 1:)

In the table of the paper, the Deppes squirrel species of mammals show an increased population but it is not significant because its p-value is 0.5415 which is higher than 0.05.

Answer 2:)

Yes, Tinamou had a higher mean density because in ruins these have 0 density. It is significant because its p-value is 0.0493 that is lower than 0.05.

Answer 3:)

The table contains the interval type of data. It provides significant information about differences between each value but it lacks true zero value.

Answer 4:)

Mean density is showing the interval type of data. It is also a continuous data because it is measurable.

Answer 5:)

The bar graph would be best to represent this data. It is because the data contains four types of information: densities in ruins and control, estimated densities, 95% confidence intervals and p-values.

PLEASE RATE THE ANSWER