7. Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 P.M. on a weekday. Use the sample data to construct a 99% confidence interval estimate of the population standard deviation. 65 64 64 56 64 54 60 59 60 69 58 68 1 Click the icon to view the table of Chi-Square critical values. The confidence interval estimate is mi/h

7. Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 P.M. on a weekday. Use the sample data to construct a 99% confidence interval estimate of the population standard deviation. 65 64 64 56 64 54 60 59 60 69 58 68 1 Click the icon to view the table of Chi-Square critical values. The confidence interval estimate is mi/h

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

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

7. Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30
P.M. on a weekday. Use the sample data to construct a 99% confidence interval estimate of the population standard
deviation.
65 64
64
56
64
54
60
59 60
69
58
68
1 Click the icon to view the table of Chi-Square critical values.
The confidence interval estimate is
mi/h <o<
mi/h.
(Round to one decimal place as needed.)
Does the confidence interval describe the standard deviation for all times during the week? Choose the correct answer
below.
O A. No. The confidence interval is an estimate of the standard deviation of the population
of speeds at 3:30 on a weekday, not other times.
O B. Yes. The confidence interval describes the standard deviation for all times during the
week.

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