Suppose we have the following hypothetical data. A random sample control group of 10,000 people received a placebo and a random sample treatment group of 10,000 people received a Covid-19 vaccine. At the end of the clinical trial researchers discover 11% of the control group required hospitalization for Covid-19 and 7% and of the treatment group required hospitalization for Covid-19. Construct a 95% confidence interval for the population proportion of hospitalization for the control group and for the treatment group. Based on your comparison of the two confidence intervals, which is true?

Select one:

a.

There is not enough information to determine if there is statistical support for difference between the two groups..

b.

There is not statistical support to suggest the treatment group differs from the control group in terms of hospitalization rates for Covid-19.

c.

There is statistical support to suggest the treatment group differs from the control group in terms of hospitalization rates for Covid-19.