Question

The ages (in years) of eight children and the number of words in their vocabulary are...

The ages (in years) of eight children and the number of words in their vocabulary are noted in the table below. Find the correlation ( r ) and then test to see if there is enough evidence to conclude that there is a significant linear correlation between the data.
Vocabulary
Age Size
x y
1 3
2 440
3 1200
3 1100
4 1500
5 2100
5 2000
6

2600

What is r?

Ho:?

Ha:?

Level of Significance (alpha):?

Number of tails?

Degrees of Freedom (df)?

Decision Rule:

c.v.

critical value

t=?

Retain Ho? or Reject Ho and Retain Ha?

STEP 5: p-value

Group of answer choices:

p < 0.005

NA - no p-value if you Retain Ho

p <0.01

Math   Statistics-And-Probability   
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