A researcher performed a study to determine whether an assocaition exists betwee
ID: 3437314 • Letter: A
Question
A researcher performed a study to determine whether an assocaition exists between sex and blood type. He obtained the following data.
Blood Type A O B AB TOTAL
Sex Female 115 141 27 13 296
Male 86 91 26 9 212
Total 201 232 53 22 508
At the 10% significance level, do the data to prove sufficient evidence to conclude that an association exists between sex and blood type?
Perform a chi-square independence test using the P-value approach, providing the conditions for using the test are met.Be sure to state the hypothesis and significance level, to obtain the expected frequencies , compute the test statistic and obtain the P value and state your conclusion...
Explanation / Answer
H0: An association does not exist between sex and blood type
Ha: An association exists between sex and blood type.
= 0.10
Test statistic: 2 = 1.867.
P-value > 0.10
Do not reject H0 .
At the 10% significance level, the data do not provide sufficient evidence to conclude that an association exists between sex and blood type.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.