Suppose that a committee is studying whether or not there is waste of time in our judicial system. It is interested in the mean amount of time individuals waste at the courthouse waiting to be called for jury duty. The committee randomly surveyed 81 people who recently served as jurors. The sample mean wait time was eight hours with a sample standard deviation of two hours. O Part (a) (i) Enter an exact number as an integer, fraction, or decimal. hrs (ii) Enter an exact number as an integer, fraction, or decimal. Sy = hrs (iii) Enter an exact number as an integer, fraction, or decimal. n = (iv) Enter an exact number as an integer, fraction, or decimal. n-1 = O Part (b) O Part (c) O Part (d) Construct a 95% confidence interval for the population mean time wasted. (i) State the confidence interval. (Round your answers to two decimal places.) hrs (ii) Sketch the graph. (Round your answers to two decimal places. Enter your a/2 to three decimal places.) CL = (iii) Calculate the error bound. (Round your answer to two decimal places.) hrs

Suppose that a committee is studying whether or not there is waste of time in our judicial system. It is interested in the mean amount of time individuals waste at the courthouse waiting to be called for jury duty. The committee randomly surveyed 81 people who recently served as jurors. The sample mean wait time was eight hours with a sample standard deviation of two hours. O Part (a) (i) Enter an exact number as an integer, fraction, or decimal. hrs (ii) Enter an exact number as an integer, fraction, or decimal. Sy = hrs (iii) Enter an exact number as an integer, fraction, or decimal. n = (iv) Enter an exact number as an integer, fraction, or decimal. n-1 = O Part (b) O Part (c) O Part (d) Construct a 95% confidence interval for the population mean time wasted. (i) State the confidence interval. (Round your answers to two decimal places.) hrs (ii) Sketch the graph. (Round your answers to two decimal places. Enter your a/2 to three decimal places.) CL = (iii) Calculate the error bound. (Round your answer to two decimal places.) hrs

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

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.

Question

Please label each part.

Suppose that a committee is studying whether or not there is waste of time in our judicial system. It is interested in the mean amount of time individuals waste
at the courthouse waiting to be called for jury duty. The committee randomly surveyed 81 people who recently served as jurors. The sample mean wait time
was eight hours with a sample standard deviation of two hours.
O Part (a)
(i) Enter an exact number as an integer, fraction, or decimal.
X =
hrs
(ii) Enter an exact number as an integer, fraction, or decimal.
Sx =
hrs
(iii) Enter an exact number as an integer, fraction, or decimal.
n =
(iv) Enter an exact number as an integer, fraction, or decimal.
n - 1 =
+ Part (b)
+ Part (c)
Part (d)
Construct a 95% confidence interval for the population mean time wasted.
(i) State the confidence interval. (Round your answers to two decimal places.)
hrs
(ii) Sketch the graph. (Round your answers to two decimal places. Enter your a/2 to three decimal places.)
CL =
a
=
(iii) Calculate the error bound. (Round your answer to two decimal places.)
hrs
II

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