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Get Full Access to Probability And Statistical Inference - 9 Edition - Chapter 7.2 - Problem 7.2-4
Get Full Access to Probability And Statistical Inference - 9 Edition - Chapter 7.2 - Problem 7.2-4

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# [Medicine and Science in Sports and Exercise (January 1990).] Let X and Y equal

ISBN: 9780321923271 41

## Solution for problem 7.2-4 Chapter 7.2

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Problem 7.2-4

[Medicine and Science in Sports and Exercise (January 1990).] Let X and Y equal, respectively, the blood volumes in milliliters for a male who is a paraplegic and participates in vigorous physical activities and for a male who is able-bodied and participates in everyday, ordinary activities. Assume that X is N(X , 2 X ) and Y is N(Y, 2 Y). Following are n = 7 observations of X: 1612 1352 1456 1222 1560 1456 1924 Following are m = 10 observations of Y: 1082 1300 1092 1040 910 1248 1092 1040 1092 1288 Use the observations of X and Y to (a) Give a point estimate for X Y . (b) Find a 95% confidence interval for X Y . Since the variances 2 X and 2 Y might not be equal, use Welchs T.

Step-by-Step Solution:

Step 1 of 9

Now, find the sample means.

Step 2 of 9

Step 3 of 9

##### ISBN: 9780321923271

The full step-by-step solution to problem: 7.2-4 from chapter: 7.2 was answered by , our top Statistics solution expert on 07/05/17, 04:50AM. Probability and Statistical Inference was written by and is associated to the ISBN: 9780321923271. This textbook survival guide was created for the textbook: Probability and Statistical Inference , edition: 9. This full solution covers the following key subjects: . This expansive textbook survival guide covers 59 chapters, and 1476 solutions. The answer to “[Medicine and Science in Sports and Exercise (January 1990).] Let X and Y equal, respectively, the blood volumes in milliliters for a male who is a paraplegic and participates in vigorous physical activities and for a male who is able-bodied and participates in everyday, ordinary activities. Assume that X is N(X , 2 X ) and Y is N(Y, 2 Y). Following are n = 7 observations of X: 1612 1352 1456 1222 1560 1456 1924 Following are m = 10 observations of Y: 1082 1300 1092 1040 910 1248 1092 1040 1092 1288 Use the observations of X and Y to (a) Give a point estimate for X Y . (b) Find a 95% confidence interval for X Y . Since the variances 2 X and 2 Y might not be equal, use Welchs T.” is broken down into a number of easy to follow steps, and 136 words. Since the solution to 7.2-4 from 7.2 chapter was answered, more than 357 students have viewed the full step-by-step answer.

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