Question

In a​ randomized, placebo-controlled​ study, 1025 healthy women 45 years of age or older were randomly divided into two groups. The women in group 1 received 100 mg of a drug every other​ day; the women in group 2 received a placebo every other day. The women were monitored for 10 years to determine if they experienced a cardiovascular event​ (such as a heart attack or​ stroke). Of the 508 in the drug​ group, 11 experienced a heart attack. Of the 517 women in the placebo​ group, 15 experienced a heart attack. Complete parts​ (a) through​ (h) below.

Determine the test statistic.

z0 =

​(Round to two decimal places as​ needed.)

Determine the​ P-value.

The​ P-value is

​(Round to three decimal places as​ needed.)

Determine the test statistic.

chi Subscript 0 Superscript χ20 =

​(Round to three decimal places as​ needed.)

Determine the P-value

The​ P-value is

​(Round to three decimal places as​ needed.)

Answer 1