Question

An article in the New Enpland Journal of Medicine, discussed a study on smokers in California and Hewan. In one part of the report, the self-reported ethnicity and smoking levels per day were given. Of the people smoking at most ten cigarettes per day, there were 9,886 African Americans, 2,745 Native Hawan, 12,831 Latinos, 8,378 Japanese Americans and 7,650 whites. Of the people smoking 11 to 20 cigarettes per day, there were 6,514 African Americana, 3,062 Native Hawaiian 4,932 Latinos, 10,680 Japanese American, and 9,877 whites of the people sucking 21 to 30 cigarettes per day, there were 1,671 African American, 1,419 Native Hawa , 1406 Latinos, 4,715 Japanese American, and 6,062 whites of the people smoking at least 31 caretes per day, there were 759 African Ame 7 Native Latinos, 2005 Jane American, 1970 wat African Smoking Level Per Day Native Hawaiian Japanese Americans American Latino TOTALS 1-10 11-20 21-30 314 TOTALS 1. Complete the table Ha 3. E xpected va l able above Roured to decimal places 3 test statistic 6 p-value is this a righe rated lettracted or two-tailed to Explain why

Answer 1

1.

Smoking Level per Day	African American	Native Hawaiian	Latino	Japanese American	White	Row Totals
1-10	9886  (7777.57)  [571.58]	2745  (3310.11)  [96.48]	12831  (8248.02)  [2546.51]	8378  (10771.29)  [531.77]	7650  (11383.01)  [1224.22]	41490
11-20	6514  (6573.16)  [0.53]	3062  (2797.52)  [25.00]	4932  (6970.76)  [596.28]	10680  (9103.29)  [273.09]	9877  (9620.27)  [6.85]	35065
21-30	1671  (2863.02)  [496.30]	1419  (1218.49)  [32.99]	1406  (3036.20)  [875.29]	4715  (3965.05)  [141.85]	6062  (4190.23)  [836.12]	15273
31+	759  (1616.25)  [454.68]	788  (687.87)  [14.57]	800  (1714.01)  [487.41]	2305  (2238.37)  [1.98]	3970  (2365.49)  [1088.33]	8622
Column Totals	18830	8014	19969	26078	27559	100450  (Grand Total)

2.

H0: Smoking levels per day are independent of ethnicity

H1: Smoking levels per day are not independent of ethnicity

3.

(done)

4.

df= 3x4 = 12