×
×

# Let X equal the forced vital capacity (the volume of air a person can expel from his or

ISBN: 9780321923271 41

## Solution for problem 6.3-2 Chapter 6.3

Probability and Statistical Inference | 9th Edition

• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

Probability and Statistical Inference | 9th Edition

4 5 0 422 Reviews
19
0
Problem 6.3-2

Let X equal the forced vital capacity (the volume of air a person can expel from his or her lungs) of a male freshman. Seventeen observations of X, which have been ordered, are 3.7 3.8 4.0 4.3 4.7 4.8 4.9 5.0 5.2 5.4 5.6 5.6 5.6 5.7 6.2 6.8 7.6 (a) Find the median, the first quartile, and the third quartile. (b) Find the 35th and 65th percentiles.

Step-by-Step Solution:
Step 1 of 3

#data anlysis for using weighted linear regression x=c(2,2.4,3.1,3.5,6.4,6.1,7,11.5,10.9,12.2,12.6) y=c(10.1,11.4,24.2,26.5,66.8,53.8,71.1,132.7,108,126.2,140.7) data=data.frame(x,y) m1=lm(y~x,data) plot(x,y) #from the plot, I will divide the data according to x values 2-4, 6-8, >9 group1=data[1:4,] group2=data[5:7,] group3=data[8:11,] a=c(mean(group1[,1]),var(resid(m1)[1:4]),mean(group2[,1]),var(resid(m1)[5:7]),mean(group3[,1]),var(re...

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321923271

Since the solution to 6.3-2 from 6.3 chapter was answered, more than 251 students have viewed the full step-by-step answer. This full solution covers the following key subjects: . This expansive textbook survival guide covers 59 chapters, and 1476 solutions. Probability and Statistical Inference was written by and is associated to the ISBN: 9780321923271. The answer to “Let X equal the forced vital capacity (the volume of air a person can expel from his or her lungs) of a male freshman. Seventeen observations of X, which have been ordered, are 3.7 3.8 4.0 4.3 4.7 4.8 4.9 5.0 5.2 5.4 5.6 5.6 5.6 5.7 6.2 6.8 7.6 (a) Find the median, the first quartile, and the third quartile. (b) Find the 35th and 65th percentiles.” is broken down into a number of easy to follow steps, and 68 words. The full step-by-step solution to problem: 6.3-2 from chapter: 6.3 was answered by , our top Statistics solution expert on 07/05/17, 04:50AM. This textbook survival guide was created for the textbook: Probability and Statistical Inference , edition: 9.

#### Related chapters

Unlock Textbook Solution