To test the claim using two proportion z test

Reference no: EM1315053

Does lovastatin (a cholesterol-lowering drug) reduce the risk of heart attack? In a Texas study, researchers gave lovastatin to 2,325 people and an inactive substitute to 2,081 people (average age 58). After 5 years, 57 of the lovastatin group had suffered a heart attack, compared with 97 for the inactive pill.

a) State the appropriate hypotheses.

b) Obtain a test statistic and p-value. Interpret the results at α = .01.

Reference no: EM1315053

Questions Cloud

Computation of common stock dividend : Computation of Common stock dividend - the common stockholders should receive 2008 dividends totaling

What charge resides on the ball : On earth, two parts of a space probe weigh 14000 N and 3500 N. These parts are separated by the center-to-center distance of 8m and may be treated as uniform spherical objects. Find out the magnitude of the gravitational force that each part exerts o..

Finding values symmetrically distributed around mean : 95% of breaking strengths will be contained between what two values symmetrically distributed around mean?

Assume which barb also jim can switch between settings : Barb also Jim run a business which sets up also tests computers. Assume which Barb also Jim can switch between settings up also testing computers at a constant rate

To test the claim using two proportion z test : Obtain a test statistic and p -value. Interpret the results at α = .01.

Patients role in modifying behavior : Specify the patient’s role in alteration of the behavior? What research has been done in order to substantiate effect of the patient’s involvement? What is measured?

Focus on short-run as well as long-run equilibrium : how the economy moves to a new equilibrium. Focus on short-run as well as long-run equilibrium.

Determining externalities : You're the manager of a paper mill and have been subpoenaed to appear before a joint session of the Senate Consumer Affairs and the Senate Environmental subcommittees.

Calculate the galois group : Calculate the Galois group.

User Account

All Pages