Answered: Construct a 90% confidence interval,…

Construct a 90% confidence interval, using the inequality d – te Prl > (Type an integer or a decimal. Round to two decimal places as needed.)

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

Construct a 90% confidence interval, using the inequality d – te<Hd <d+tc
To test the effectiveness of a new drug that is reported to increase the number of hours of sleep patients get during the night,
researchers randomly select 13 patients and record the number of hours of sleep each gets with and without the new drug.
Patient
Sleep without the drug 4.3 |4.3 3.1 4.2 4.6 2.2 3.4 3.8 4.7 4.5| 5.2 4.7 3.6
Sleep using the drug
1
4
5
6
7
8
10
11 12 13 e
6.4 4.9 3.8 6.4| 6.3 3.1 4.6 6.2 7.1 6.8 | 6.9 6.5| 5.1
Calculate d for each patient by subtracting the number of hours of sleep with the drug from the number without the drug. The confidence interval is
> Prl >
(Type an integer or a decimal. Round to two decimal places as needed.)

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