Let X Represent the SAT Total Score of an Entering

question 43

Multiple Choice

Let X represent the SAT total score of an entering freshman at University X.The random variable X is known to have a N(1200,90) distribution.Let Y represent the SAT total score of an entering freshman at University Y.The random variable Y is known to have a N(1215,110) distribution.A random sample of 100 freshmen is obtained from each university.Let = the sample mean of the 100 scores from University X,and = the sample mean of the 100 scores from University Y.What is the probability that will be greater than ?

• A)0.0475
• B)0.0869
• C)0.1456
• D)0.2266

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Definitions:

Fetal Heartbeat

The cardiac activity of a fetus, often detectable by ultrasound around the 6th week of pregnancy.

Labor

The process of childbirth, especially the period from the start of contractions to delivery or in a broader sense, physical or mental exertion especially when difficult or exhausting.

Delivery

The process of transporting goods from one location to another or the act of giving birth.

Cesarean Birth Rates

The frequency or proportion of births performed through cesarean section in a given population.