A study was conducted to determine the effect of cigarette smoking on the carbon monoxide diffusing capacity of the lung. The carbon monoxide diffusing capacities for a random sample of 20 current smokers are listed below. Assume that the distribution is normally distributed. 1048973123919262918476101887182891031097310790 Construct a 90% confidence interval for the mean carbon monoxide diffusing capacity of current smokers.Based on the interval in [a], would you agree that the mean diffusing capacity could be 100? Explain.

1) The 90% confidence interval for the mean carbon monoxide diffusing capacity of current smokers…

Answered: A study was conducted to determine the…

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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A study was conducted to determine the effect of cigarette smoking on the carbon monoxide diffusing capacity of the lung. The carbon monoxide diffusing capacities for a random sample of 20 current smokers are listed below. Assume that the distribution is normally distributed.

104	89	73	123	91
92	62	91	84	76
101	88	71	82	89
103	109	73	107	90

Construct a 90% confidence interval for the mean carbon monoxide diffusing capacity of current smokers.

Based on the interval in [a], would you agree that the mean diffusing capacity could be 100? Explain.

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 + ...

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