Question

A vaccine to prevent a severe virus was given to children within the first year of life as part of a drug study. The study reported that of the

3029 children randomly assigned the vaccine, 49 got the virus. Of the 1584 children randomly assigned the placebo, 43 got the virus.

a. Find the sample percentage of children who caught the virus in each group. Is the sample percentage lower for the vaccine group, as investigators hoped?

b. Determine whether the vaccine is effective in reducing the chance of catching the virus, using a significance level of

0.10

Find z test statistic and p-value

Answer #1

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 13 minutes ago

asked 15 minutes ago

asked 19 minutes ago

asked 22 minutes ago

asked 26 minutes ago

asked 28 minutes ago

asked 36 minutes ago

asked 39 minutes ago

asked 45 minutes ago

asked 49 minutes ago

asked 52 minutes ago

asked 57 minutes ago