Currently patrons at the library speak at an average of 63 decibels. Will this average change after installation of a new computer plug in station? After the plug in station was built, the librarian randomly recorded 66 people speaking at the library. Their average decibel level was 65.9 and th standard deviation was 10. What can be condluded at the the a = 0.05 level of significance? a. For this study. we should use -Hest for a population mean b. The null and alternative hypotheses would be: "Ho: ?v Select an answer v Select an answer v c. The test statistic ?v (please show your answer 4 decimal places.) d The pavalue פו (Please show VOur answer to 4 decimal places

A family of curves is a group of curves that are each described by a parametrization in which one or more variables are parameters. In general, the parameters have more complexity on the assembly of the curve than an ordinary linear transformation. These…

In order to understand XZ plane, it's helpful to understand two-dimensional and three-dimensional spaces. To plot a point on a plane, two numbers are needed, and these two numbers in the plane can be represented as an ordered pair (a,b) where a and b are…

Geometry is the branch of mathematics that deals with flat surfaces like lines, angles, points, two-dimensional figures, etc. In Euclidean geometry, one studies the geometrical shapes that rely on different theorems and axioms. This (pure mathematics) ge…

In a two-dimensional plane, a line is simply a figure that joins two points. Usually, lines are used for presenting objects that are straight in shape and have minimal depth or width.