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
Family of Curves
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 families appear commonly in the solution of differential equations. When a constant of integration is added, it is normally modified algebraically until it no longer replicates a plain linear transformation. The order of a differential equation depends on how many uncertain variables appear in the corresponding curve. The order of the differential equation acquired is two if two unknown variables exist in an equation belonging to this family.
XZ Plane
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 real numbers and a is the horizontal coordinate and b is the vertical coordinate. This type of plane is called two-dimensional and it contains two perpendicular axes, the horizontal axis, and the vertical axis.
Euclidean Geometry
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) geometry was introduced by the Greek mathematician Euclid, and that is why it is called Euclidean geometry. Euclid explained this in his book named 'elements'. Euclid's method in Euclidean geometry involves handling a small group of innately captivate axioms and incorporating many of these other propositions. The elements written by Euclid are the fundamentals for the study of geometry from a modern mathematical perspective. Elements comprise Euclidean theories, postulates, axioms, construction, and mathematical proofs of propositions.
Lines and Angles
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.
B,C,D
![Currently patrons at the library speak at an average of 63 decibels. Will this average change after the
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 their
standard deviation was 10. What can be concluded at the the a = 0.05 level of significance?
a. For this study, we should use E-test for a population mean
b. The null and alternative hypotheses would be:
V Select an answer v
Select an answer v
c. The test statistic ?
(please show your answer to 4 decimal places.)
d. The p-value =
(Please show your answer to 4 decimal places.)
e. The p-value is sV▼ a
f. Based on this, we should reject
]* the null hypothesis.
g. Thus, the final conclusion is that.
O The data suggest that the population mean decibal level has not significantly changed
from 63 at a = 0.05, so there is not enough evidence to conclude that the population
mean decibel level at the library has changed since the plug in station was built.
The data suggest the populaton mean has significantly changed from 63 at a = 0.05, so
there is enough evidence to conclude that the population mean decibel level at the
library has changed since the plug in station was built.
O The data suggest the population mean has not significantly changed from 63 at a = 0.05.
so there is enough evidence to conclude that the population mean decibel level at the
library has not changed since the plug in station was built.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd088cded-5e85-4a7d-88ec-be9286d3c6bc%2Fa222c4db-29b2-41a4-98dc-9abd3adbb0ee%2Fxgsvaqi_processed.png&w=3840&q=75)
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