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Giovani Corona 025
on Oct 20, 2024

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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 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 distribution of the difference in sample means between University X and University Y: - ? A) N(-15,-20) B) N(-15,14.2) C) N(-15,142.1) D) N(-15,200) = the sample mean of the 100 scores from University X,and 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 distribution of the difference in sample means between University X and University Y: - ? A) N(-15,-20) B) N(-15,14.2) C) N(-15,142.1) D) N(-15,200) = the sample mean of the 100 scores from University Y.What is the distribution of the difference in sample means between University X and University Y: 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 distribution of the difference in sample means between University X and University Y: - ? A) N(-15,-20) B) N(-15,14.2) C) N(-15,142.1) D) N(-15,200) - 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 distribution of the difference in sample means between University X and University Y: - ? A) N(-15,-20) B) N(-15,14.2) C) N(-15,142.1) D) N(-15,200) ?

A) N(-15,-20)
B) N(-15,14.2)
C) N(-15,142.1)
D) N(-15,200)

Sample Means

The average value of a set of samples from a population.

Freshmen

First-year students at a high school, college, or university.

  • Attain familiarity with the central limit theorem and discern its impact on the distribution of sample means.
  • Implement the principle of sampling distribution to approximate parameters of a population.
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