Question

1.

Use the paired data below to test the claim that there is a correlation between x and y, using α=0.05. Round your answer to 3 decimal places.

x	46.6	27.2	43.1	29	34.8
y	8	8	3	9	2

Group of answer choices

p-value=0.692, evidence support claim

p-value=0.692, evidence not support claim

p-value=0.615, evidence not support claim

p-value=0.307, evidence not support claim

p-value=0.615, evidence support claim

2.

We interviewed a group of adult residents at Chill town, and ask them how many hours they sleep each night. Below are the data, broken down according to location:

Group	Location	Sample size	Average	Standard deviation
1	Rural	43	8.6	2.03
2	Urban	35	8.76	1.81

Find a 95% confidence interval for the difference between the two means. Round your answer to 3 decimal places. What conclusion can you draw?

Group of answer choices

(-1.027,0.707) No conclusion

(-0.163,-0.157) Group 2 is bigger

(-0.163,0.157) No conclusion

(-1.027,0.707) Group 2 is bigger

(-0.163,-0.157) No conclusion

Answer 1