Include the title for the step in each of your problem solutions

( example:a. population, b. parameter, etc. )

a.population

b.parameter

c.null hypothesis and alternative hypothesis

d.data / statistics

e.validity check

f.distribution with critical value(s)

g.test statistic ( plot it on the diagram in step f. )

h.decision

i.conclusion

A medical study was conducted to determine if a certain type of

inoculation is effective in preventing a certain disease.A sample

of rats were kept in a controlled environment for one year.In the

group of 100 rats who were given the drug, 32 contracted the

disease. In the group of 150 rats who were not given the drug, 68

contracted the disease.Test to see if there is any difference in

the proportion of rats who contracted the disease.Use a level of

significance of 0.10