Measles and Mumps A researcher wishes to see if there is a relationship between the number of reported cases of measles and mumps for a recent 5 -year period. Is there a linear relationship between...



Measles and Mumps
A researcher wishes to see if there is a relationship between the number of reported cases of measles and mumps for a recent 5 -year period. Is there a linear relationship between the two variables?
























Measles Cases





   47




   139




   66




   56




   207



Mumps Cases





   797




   438




   2005




   2611




   375



(a) Draw the scatter plot for the variables.















Measles and Mumps

Mumps













y

500

1000

1500

2000

2500

3000

x

50

100

150

200

250

0



































(b) Compute the value of the correlation coefficient. Round your answer to at least three decimal places.












=r









(c) State the hypotheses.























H0


:







H1


:

























(d) Test the significance of the correlation coefficient at



=α0.05


, using The Critical Values for the PPMC Table.











Critical values:

±







▼(Choose one) the null hypothesis.














(e) Give a brief explanation of the type of relationship.









There ▼(Choose one) sufficient evidence to conclude that a significant linear relationship exists between the number of reported cases of measles and mumps.







Jun 01, 2022
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