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This GIS470 use Rstudio to solve this questions QUESTION 1Use the Climate Teleconnection

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This GIS470 use Rstudio to solve this questions  QUESTION 1Use the Climate Teleconnection

Dataset.

Experiment 1

Does the phase of El Nino / La Nino influence the monthly temperature of Phoenix?

Create two subsets of phx_temp variable… one where the multivariate enso index (MEI) is greater than 1 (El Nino) and the other where the MEI is less than -1 (La Nina).

Conduct a variance test, and post the result in the space below.

What is the result of this statistical test? Does this mean your following 2-sample T.Test can assume equal variances?

For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). QUESTION 2If you have constructed your subsets correctly, your means should bemean of Nino.Temp 19.76553 ; Nina.Temp 18.92117Set up a 2 Sample T-Test to test if Nino Temperatures are warmer (greater) than Nina Temperatures. Assume a confidence level of 95 %. Assign the var.equal keyword argument based on your previous response. Is this a one-sided or two-sided test. Input the results of the test below.

QUESTION 3

Experiment 2

Does the Atlantic Multidecadal Oscillation affect the number of Atlantic Ocean Hurricanes?

Step 1:

Create a stacked boxplot plot of the AMO variables as a factor (~) of HURR (hurricane numbers). Attach this figure as a PNG. QUESTION 4

Step 2:

Generate a ANOVA model analyzing AMO values factored by HURR.

Copy and Paste the summary() of the model in the field below.

Provide a few sentences on the results of the model. Is there a difference between the number of hurricanes?

 
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