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5 November, 12:20

A survey asked people if they were aware that maintaining a healthy weight could reduce the risk of stroke. A 97% confidence interval was found using the survey results to be (0.45, 0.67). What is the correct interpretation of this interval?

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  1. 5 November, 12:44
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    97% confidence interval for the survey is between a lower limit of 0.45 and an upper limit of 0.67

    Step-by-step explanation:

    Confidence Interval is given by the mean + or - error margin

    The lower limit of the confidence interval is found by subtracting the error margin from the mean.

    The upper limit is obtained by adding the error margin to the mean.

    The interpretation is that the mean is between 0.45 and 0.67
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Home » Mathematics » A survey asked people if they were aware that maintaining a healthy weight could reduce the risk of stroke. A 97% confidence interval was found using the survey results to be (0.45, 0.67). What is the correct interpretation of this interval?
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