a) Construct a 99% confidence interval for the proportion of all females who rate themselves as "overweight". b) Does the interval suggest that less than 25% of females rate themselves as "overweight"? Explain. c) Construct a 90% confidence interval for the proportion of males who rate themselves as "about right".

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.