Chapter 23, Problem 61E

a.

To determine

Comment on the assumption for inference.

b.

To determine

Test on appropriate hypothesis for checking there is evidence of a strong association between the level of Education in a city and the mortality rate and state the conclusion.

c.

To determine

Check whether the conclusion getting more education is likely to prolong your life is true can conclude or not and explain the reason.

d.

To determine

Find the 95% confidence interval for the average mortality rate in cities where the adult population completed an average of 12 years of school.

e.

To determine

Explain the meaning of confidence interval.

f.

To determine

Find a 95% confidence interval for the average mortality rate in cities where the adult population completed an average of 12 years of school.