A random sample of the amount paid (in dollars) for taxi fare from downtown to the airport was obtained. (Give your answers correct to two decimal places.) 16 18 18 18 15 18 22 22 20 23 13 20 19 20 22 (a) Use the data to find a point estimate for the mean. $19.60 ✓ (b) Use the data to find a point estimate for the variance. $ x (c) Use the data to find a point estimate for the standard deviation. $ X
A random sample of the amount paid (in dollars) for taxi fare from downtown to the airport was obtained. (Give your answers correct to two decimal places.) 16 18 18 18 15 18 22 22 20 23 13 20 19 20 22 (a) Use the data to find a point estimate for the mean. $19.60 ✓ (b) Use the data to find a point estimate for the variance. $ x (c) Use the data to find a point estimate for the standard deviation. $ X
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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Transcribed Image Text:A random sample of the amount paid (in dollars) for taxi fare from downtown to the airport was obtained. (Give your answers correct to two decimal places.)
16 18 18 18 15 18 22 22 20 23 13 20 19 20 22
(a) Use the data to find a point estimate for the mean.
$ 19.60
(b) Use the data to find a point estimate for the variance.
$
x
(c) Use the data to find a point estimate for the standard deviation.
$
X
Transcribed Image Text:Consider the following. (Enter your answers to four decimal places.)
(a) Find the level of confidence assigned to an interval estimate of the mean formed using the interval x - 1.11. ox
(b) Find the level of confidence assigned to an interval estimate of the mean formed using the interval x - 1.51. x
(c) Find the level of confidence assigned to an interval estimate of the mean formed using the interval x - 1.87 x
to
to
to
to
(d) Find the level of confidence assigned to an interval estimate of the mean formed using the interval x -2.06. x
X
X+ 1.11.0x
X+ 1.51 x
X+ 1.87 x
.
x + 2.06.x
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