5. To estimate the population mean we can use a confidence interval and get a critical value fromt distribution. Find the critical value. sample size = 18, confidence level = 90% . 1.740 b. 1.734 C. 1.330 d. 1.328

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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.