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Category > Business & Finance Posted 11 Jun 2017 My Price 10.00

The peak flow rate of a person is the fastest rate at which the person can expel air

12.3.8 The peak flow rate of a person is the fastest rate at which the person can expel air after taking a deep breath. Peak flow rate is measured in units of liters per minute and gives an indication of the person’s respiratory health. Re- searchers measured peak flow rate and height for each of a sample of 17 men. The results are given in the table.17

 

PEAK FLOW RATE Y

  SUBJECT      HEIGHT X (cm)                       (l/min)           

 

 

 

1

174

733

2

183

572

3

176

500

4

169

738

5

183

616

6

186

787

7

178

866

8

175

670

9

172

550

10

179

660

11

171

575

12

184

577

13

200

783

14

195

625

15

176

470

16

176

642

 
 

r  = 0.88665

 

                              SS(resid) = 0.013986              

 

 

 

(a)     Calculate the linear regression of Y on X.

(b)     Plot the data and the regression line.

(c)     Interpret the value of the slope of the regression line,

b1, in the context of this setting.

 

(d)     Calculate the residual standard deviation.

Answers

Alpha Geek
(8)
Status NEW Posted 11 Jun 2017 07:06 AM My Price 10.00

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