Biostatistics - There is ONE question: evalute this material, along with many su
ID: 3431364 • Letter: B
Question
Biostatistics - There is ONE question: evalute this material, along with many sub-questions (all refer to the same material), ONLY use yellow/ highlighted to answer the questions.
Brief material: https://www.dropbox.com/s/j7eg5nh76ae4p3b/p1u.png?dl=0
Questions: https://www.dropbox.com/s/m9nu5ozrhjtajwp/p2.png?dl=0
[In case you need the full materials for understanding, but we are still ONLY use yellow-highlighted to answer the questions: https://www.dropbox.com/s/uw09x1pcfz8pa60/fullb.pdf?dl=0 ]
Explanation / Answer
H0: Blue and white are entirely same
Ha: There is no association or equality between blue and white
Two sided chi square test.
Two-way Contingency Table
?2 = 40.551, df = 2, ?2/df = 20.28 , P(?2 > 40.551) = 0.0000
As p value =0
H0 is rejected.
Blue and white are different.
warning: some observed or expected frequencies are less than 5; thus the Central Limit Theorem may not apply and the resultant ?2 may be invalid
expected values are displayed in italics
individual ?2values are displayed in (parentheses)
unharmed paralysed Dead White workers 31
17.00
( 11.53) 4
7.50
( 1.63) 5
15.50
( 7.11) 40 Blue workers 3
17.00
( 11.53) 11
7.50
( 1.63) 26
15.50
( 7.11) 40 34 15 31 80
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