# HU Econometrics with Odds and Odd Ratio Question

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Question 2, Econometrics with odds and odd ratio. I need 80%+ in this assignment only bid if you are sure thanks.

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Intestinal helminths (intestinal worms) is known for causing severe diarrhoea and
dehydration and is one of the leading causes of death in young children in Sub-Saharan
Africa. A deworming intervention for intestinal helminths (including hookworm,
roundworm, whipworm, and schistosomiasis) was randomly phased into school-age
children in Kenia. The intervention recruited 44,000 school-age children, with 22,000
of them given a true medical treatment (treatment group) and the 22,000 given a
placebo (control group). By the end of the intervention, 8 children in the treatment
group and 162 in the control group had contracted some type of intestinal helminths.
(a) Fill in the contingency table below with the correct frequencies and
percentages (including marginal frequencies and percentages) such that the
explanatory variable is whether someone was in the treatment or control group.
[4 Marks]
Control
Total
Treatment
Group
Group
Contracted intestinal
helminths
Did not contract
intestinal helminths
Total
44,000
(b) What are the odds of contracting intestinal helminths for those children in the
[2 marks]
(c) Calculate the odds ratio of contracting intestinal helminths depending on
whether a child was in the treatment or control group.
[4 Marks]
(d) Let us say we are part of a regulatory body that will decide on whether to
approve the deworming treatment for wider use in Sub-Saharan Africa. For
approval, the deworming treatment needs to reduce the odds of having a
confirmed case of intestinal helminths by 50%. Will the deworming treatment
[4 Marks]
An external researcher suggests that a more useful measure of the effectiveness of
the deworming treatment would include children who had a suspected case of
intestinal helminths (say, because of presenting a severe case of diarrhoea and
dehydration), not just whether there was a confirmed case. During the intervention,
there were 1594 suspected but not confirmed cases of intestinal helminths in the
treatment group and 1816 in the control group.
(e) What is the probability of having a suspected or confirmed case of intestinal
helminths for those in the treatment group? What is the probability in the
[3 Marks]
(f) What is the odds ratio of having a suspected or confirmed case of intestinal
helminths for those in the treatment versus control groups? Please show your
calculations.
[3 Marks]

attachment

Tags:
lntestlnal elmlnths

severe dlarrhoea and
dehydration

causes of death in young children

frequencies and
percentages

odds ratio of contracting intestinal helminhs

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