Mathematics, 27.12.2020 15:30 deezzzy
A study tested whether significant social activities outside the house in young children affected their probability of later developing the white blood cell disease acute lymphoblastic leukemia (ALL). They compared 1000 children with ALL to 6000 children without ALL. Of the ALL kids, 700 had significant social activity outside the home when younger. Of the non-ALL kids, 5000 had significant social activity outside the home.
Required:
a. What percentage of children with ALL have significant social activity outside the home when younger?
b. What is the sample odds ratio for significant social activity outside the home when younger, comparing the groups with and without ALL?
c. What is a 95% confidence interval for the population odds ratio for significant social activity outside the home when younger, comparing the groups with and without ALL?
d. Does the 95% confidence interval from part c. indicate that the amount of social activity is related to ALL? Why or why not?
e. Test whether significant social activities outside the house in young children affected their probability of later developing ALL, using the significance level of 0.05. Show the hypotheses, test statistic, p-value, and the conclusion.
Answers: 1
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A study tested whether significant social activities outside the house in young children affected th...
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