oup of 80 people who had been diagnosed as prediabetic because of high blood glucose levels rticipate in a study designed to investigate the use of cinnamon to reduce blood glucose to a n e 80 people, 40 were randomly assigned to take a cinnamon tablet each day and the other 40 ke a placebo each day. The people did not know which tablet they were taking. Their blood gl measured at the end of one month. The results showed that 14 people in the cinnamon group e placebo group had normal blood glucose levels. For people similar to those in the study, do i ide convincing statistical evidence that the proportion who would be classified as normal after g cinnamon is greater than the proportion who would be classified as normal after one month amon? No conclusion can be made about the use of cinnamon because the people in the study were v- са There is convincing statistical evidence at the level of 0.01. There is convincing statistical evidence at the level of 0.05 but not at the level of 0.01. There is convincing statistical evidence at the level of 0.10 but not at the level of 0.05. There is not convincing statistical evidence at anyy reasonable significance level

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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A group of 80 people who had been diagnosed as prediabetic because of high blood glucose levels volunteered
to participate in a study designed to investigate the use of cinnamon to reduce blood glucose to a normal level.
Of the 80 people, 40 were randomly assigned to take a cinnamon tablet each day and the other 40 were assigned
to take a placebo each day. The people did not know which tablet they were taking. Their blood glucose levels
were measured at the end of one month. The results showed that 14 people in the cinnamon group and 10 people
in the placebo group had normal blood glucose levels. For people similar to those in the study, do the data
provide convincing statistical evidence that the proportion who would be classified as normal after one month of
taking cinnamon is greater than the proportion who would be classified as normal after one month of not taking
cinnamon?
(A) No conclusion can be made about the use of cinnamon because the people in the study were volunteers.
(B) There is convincing statistical evidence at the level of 0.01.
(C) There is convincing statistical evidence at the level of 0.05 but not at the level of 0.01.
(D) There is convincing statistical evidence at the level of 0.10 but not at the level of 0.05.
(E) There is not convincing statistical evidence at any reasonable significance level.
Transcribed Image Text:A group of 80 people who had been diagnosed as prediabetic because of high blood glucose levels volunteered to participate in a study designed to investigate the use of cinnamon to reduce blood glucose to a normal level. Of the 80 people, 40 were randomly assigned to take a cinnamon tablet each day and the other 40 were assigned to take a placebo each day. The people did not know which tablet they were taking. Their blood glucose levels were measured at the end of one month. The results showed that 14 people in the cinnamon group and 10 people in the placebo group had normal blood glucose levels. For people similar to those in the study, do the data provide convincing statistical evidence that the proportion who would be classified as normal after one month of taking cinnamon is greater than the proportion who would be classified as normal after one month of not taking cinnamon? (A) No conclusion can be made about the use of cinnamon because the people in the study were volunteers. (B) There is convincing statistical evidence at the level of 0.01. (C) There is convincing statistical evidence at the level of 0.05 but not at the level of 0.01. (D) There is convincing statistical evidence at the level of 0.10 but not at the level of 0.05. (E) There is not convincing statistical evidence at any reasonable significance level.
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