Answered: Glaucoma is a leading cause of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

Glaucoma is a leading cause of blindness in a certain country. An ophthalmologist measured the corneal thickness of eight patients who had glaucoma in one eye but not in the other. The data on corneal thickness, in microns, are shown in the table available below. Use the paired t-interval procedure to obtain an 90% confidence interval for the difference between the mean corneal thickness of normal eyes and that of eyes with glaucoma(Normal−Glaucoma).Interpret the result.

The 90% confidence interval is from____microns to____microns

Corneal Thickness Data
Patient Normal
1
481
470
485
460
458
395
463
484
2
3
4
5
678
Glaucoma
483
469
471
442
461
408
454
472
-
X

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

Expert Solution