A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are ran- domly assigned to receive the new treatment or a placebo, and the outcome is pain relief within 30 min- utes. The data are shown in Table 7–8. Is there a sig- nificant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of sig- nificance.

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A: We can find answer as given below

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A: Given, Dimension= 35.8mm Tolerance= +or- 0.3mm

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A: Solve by using limit

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.