Let X Represent the SAT Total Score of an Entering

question 54

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 less than 1190?

• A)0.0116
• B)0.1335
• C)0.4090
• D)0.4562

Recognize the purpose and design of randomized block experiments, including blocking variables.

Calculate and interpret sum of squares in ANOVA, including total, treatment, and error.

Understand the concepts of Type I error and experimentwise error rate in the context of multiple testing.

Understand the differences between fixed-effects and random-effects ANOVA.

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Definitions:

Pearson Correlation

A measure of the linear relationship between two quantitative continuous variables, ranging from -1 to 1, where 1 means a perfect positive correlation and -1 a perfect negative correlation.

Price Per Barrel

The cost of a barrel of goods, commonly used to denote the cost of a barrel of crude oil in financial markets.

Confidence Interval Estimate

A confidence interval estimate provides a range of values, derived from sample data, that is likely to contain the value of an unknown population parameter, along with a given level of confidence.

Prediction Interval

A range of values that is likely to contain the value of an unknown parameter for a future observation, with a specified level of confidence.