Question

In: Statistics and Probability

8. Paranormal researchers collected the following data about the number of UFO and Bigfoot sightings in...

8. Paranormal researchers collected the following data about the number of UFO and Bigfoot sightings in 8 different areas. The researchers suspect that the aliens are perhaps secretly meeting with Bigfoot.

UFO Sightings

Bigfoot Sightings

3

8

3

6

1

5

6

10

7

10

4

9

2

7

6

9
  1. Calculate Pearson’s r to measure the correlation between UFO and Bigfoot sightings.

  1. Test the significance of r with alpha = .05. Specify the null & alternative hypotheses. Report your critical value and decision.

  1. Describe the direction, strength and significance of the relationship in a sentence

Solutions

Expert Solution

( X) ( Y) X^2 Y^2 X*Y
3 8 9 64 24
3 6 9 36 18
1 5 1 25 5
6 10 36 100 60
7 10 49 100 70
4 9 16 81 36
2 7 4 49 14
6 9 36 81 54

orchestra answered 1 year ago
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