15-1/19 points Prenous Answers BBUnderStatt 12.3007 My Notes Ask Your Teacher Ar

Question

15-1/19 points Prenous Answers BBUnderStatt 12.3007 My Notes Ask Your Teacher Are cigarettes bad for people? Cigarette smoking involves tar, carbon monoxide, and nicotine (measured in milligrams). The first two are definitely not good for a person's health, and the last ingredient can cause addiction. Brand Tar Nicotine CO Brand Tar Nicotine CO Alpine Benson & Hedges Bull Durham Camel Lights 14,1 0,86 13,6 MultiFilter 16.0 29,8 2,03 23,5Now 11.4 0.78 10.2 1.06 16,6Newport Lights 9.0 0.74 1,0 0,13 8.0 0,67 10,2 ld Gold 17,0 1.26 18.5 4.1 0.40 5,4 Pall Mall Lights 12,8 1.08 12.6 17.5 4.9 15.9 15,0 104 15, Raleigh 15,8 0.96 4,5 0.42 14,5 1,01 7,3 0.61 Golden Lights 9,0 Salem Ultra 8,8 0,76 124 0.95 12,3 Tareyton 16,6 1,12 16,3True Lark Lights Marlboro 14.9 1.02 154Viceroy Rich Light 8.6 0.69 10.6 15,2 1,02 13.9 12,0 0,82 14.9 13.7 1.01 13.0 Virginia Slim 15.1 0.90 14.4 Winston Lights 7.8 0.57 Use the data in the table above to make a stem-and-leaf display for milligrams of tar per cigarette smoked. (Enter NONE in any unused answer blanks.) Milligrams of Tar 12 14 15 Are there any outliers? e Yes, 29.8 may be an outlier. O Yes, 1.0 may be an outlier. No, there are no outdiers.

Explanation / Answer

First enter data miligram of star cigarate in EXCEL

We calculate First quartile

Excel command is =QUARTILE(array,1)

Q1=8.3

We calculate Third quartile

Excel command is =QUARTILE(array,3)

Q3=15.1

Outlier's calculation

1) IQR= Q3-Q1=15.1-8.3 = 6.8

2) multify 1.5 (IQR)

= 1.5*6.8= 10.2

3) Q1-1.5(IQR)

= 8.3-10.2 = 1.9

4) Q3+1.5(IQR)

= 15.1+10.2 =25.3

Any value less than the value in step 3 OR more than the value in step 4 is outlier

OUTLIER = value less than -1.9 OR more than 25.3

OUTLIER = 29.8

Quetion : Are there any outlier

Answer: Yes,29.8 may be an outlier.

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