A Survey Claims That 9 Out of 10 Doctors Recommend

question 91

Multiple Choice

A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches.To test this claim against the alternative that the actual proportion of doctors who recommend aspirin is less than 0.90,a random sample of 100 doctors' results in 83 who indicate that they recommend aspirin.The value of the test statistic in this problem is approximately equal to

• A) -0.07.
• B) -2.33.
• C) -1.86.
• D) -4.12.

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Definitions:

In Vitro Fertilization

A medical procedure in which an egg is fertilized by sperm outside the body, in a laboratory setting.

Petri Dish

A shallow cylindrical glass or plastic lidded dish that biologists use to culture cells or small organisms.

Embryos

Early stages of development for multicellular organisms following fertilization and before birth or hatching.

Vitro Fertilization

A medical procedure in which an egg is fertilized by sperm outside the body, commonly referred to as IVF, and then the embryo is implanted in the uterus.