Concept explainers
(a)
Interpretation:
The fraction of people with tumours having a false negative indication of cancer has to be given.
Concept Introduction:
Gaussian curve:
The Gaussian curve is given by the formula:
Where,
e is the base of the natural logarithm
The deviations from mean value is expressed in multiples, z, of the standard deviation and which is given as follows:
To Give: The fraction of people with tumours having a false negative indication of cancer.
(b)
Interpretation:
Using excel NORMDIST function, the fraction of healthy people having false positive indication of cancer has to be given.
Concept Introduction:
Gaussian curve:
The Gaussian curve is given by the formula:
Where,
e is the base of the natural logarithm
The deviations from mean value is expressed in multiples, z, of the standard deviation and which is given as follows:
To Give: The fraction of healthy people having false positive indication of cancer using excel NORMDIST function.
(c)
Interpretation:
From spreadsheet of part (b) and with the information that
Concept Introduction:
Gaussian curve:
The Gaussian curve is given by the formula:
Where,
e is the base of the natural logarithm
The deviations from mean value is expressed in multiples, z, of the standard deviation and which is given as follows:
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