In this part of the question, you should calculate the required confidence interval by hand, using tables, and show your working In a large study of patients who were being treated for hypertension (high blood pressure), 148 out of 5493 patients receiving the conventional treatment for hypertension later suffered a stroke. Also, 192 out of 5492 patients receiving an alternative drug to treat their hypertension later suffered a stroke. (i) Obtain an approximate 95% confidence interval for the difference in proportions between the number of conventionally treated hypertension patients who later suffered a stroke and the number of hypertension patients treated with the alternative drug who later suffered a stroke. (You are advised to work with proportions rounded to four decimal places throughout; also, you may assume that the numbers involved are large enough that your approximation is a good one.) (ii) Some clinicians had suggested that the proportions of hypertension patients who suffered a stroke would not depend on which treatment they were being given. Are the data consistent with that suggestion? Justify your answer briefly. h (United Kingdom) IT Focus MacBook
In this part of the question, you should calculate the required confidence interval by hand, using tables, and show your working In a large study of patients who were being treated for hypertension (high blood pressure), 148 out of 5493 patients receiving the conventional treatment for hypertension later suffered a stroke. Also, 192 out of 5492 patients receiving an alternative drug to treat their hypertension later suffered a stroke. (i) Obtain an approximate 95% confidence interval for the difference in proportions between the number of conventionally treated hypertension patients who later suffered a stroke and the number of hypertension patients treated with the alternative drug who later suffered a stroke. (You are advised to work with proportions rounded to four decimal places throughout; also, you may assume that the numbers involved are large enough that your approximation is a good one.) (ii) Some clinicians had suggested that the proportions of hypertension patients who suffered a stroke would not depend on which treatment they were being given. Are the data consistent with that suggestion? Justify your answer briefly. h (United Kingdom) IT Focus MacBook
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 1SE: What term is used to express the likelihood of an event occurring? Are there restrictions on its...
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In this part of the question, you should calculate the required confidence interval by hand,
using tables, and show your working
In a large study of patients who were being treated for hypertension
(high blood pressure), 148 out of 5493 patients receiving the
conventional treatment for hypertension later suffered a stroke. Also,
192 out of 5492 patients receiving an alternative drug to treat their
hypertension later suffered a stroke.
(i) Obtain an approximate 95% confidence interval for the difference in
proportions between the number of conventionally treated
hypertension patients who later suffered a stroke and the number of
hypertension patients treated with the alternative drug who later
suffered a stroke. (You are advised to work with proportions
rounded to four decimal places throughout; also, you may assume
that the numbers involved are large enough that your
approximation is a good one.)
(ii) Some clinicians had suggested that the proportions of hypertension
patients who suffered a stroke would not depend on which
treatment they were being given. Are the data consistent with that
suggestion? Justify your answer briefly.
h (United Kingdom)
Focus
MacBook
DII
DD
F4
F5
F6
F7
F8
F9
&
*
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