Please give steps! 1. Using the table below, which of the following statements a
ID: 3395828 • Letter: P
Question
Please give steps!
1. Using the table below, which of the following statements about the table is correct?
A. Children are 30% more likely to smoke if one parent smokes than if neither parent smokes.
B. Children are 10% more likely to smoke if one parent smokes than if neither parent smokes.
C. Children are 20% more likely to smoke if one parent smokes than if neither parent smokes.
D. None of the above statements are correct.
2. Approximately how many student smokers of two smoking parents should we EXPECT TO SEE if there were no association between student smoking status and parent smoking status?
Student Smokes Student Does Not Smokes Both Parent Smokes 200 800 One Parent Smokes 300 1700 Neither Parent Smokes 120 680Explanation / Answer
H0: there is no association between student smoking status and parent smoking status?
Ha: there is association
Two tailed chi square can be used
The chi-square statistic is 13.4916. The p-value is .001176. The result is significant at p < .05.
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If one parent smokes, expected number of smokers =326.32
Hence more than double is there hence none is right.
Expected value if null hyp is true for student smokers of two smoking parents = 163.16
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Results student smokes student does not smoke Row Totals BOth parent smoke 200 (163.16) [8.32] 800 (836.84) [1.62] 1000 ONe parent smoke 300 (326.32) [2.12] 1700 (1673.68) [0.41] 2000 Neither parent smoke 120 (130.53) [0.85] 680 (669.47) [0.17] 800 Column Totals 620 3180 3800 (Grand Total)