looking at the data (image provided) what conclusions can we draw and what does that mean for the research question : does chronic parental smoking affect the gestational period and birthweight of a baby? Summary StatisticsSmoking parentsFrequency: 22Mean: 3.13Non-smoking parentsFrequency: 20Mean: 3.50Median: 3.18Median: 3.38Birthweight (kg)Mode: 3.32Mode: 3.5Lower quartile: 3.54Upper quartile: 2.74Interquartile range: 0.80Lower quartile: 3.93Upper quartile: 3.14Interquartile range: 0.79Standard Deviation: 0.52Standard Deviation: 0.63Range: 2.65Frequency: 22Mean: 38.9Range: 1.9Frequency: 20Mean: 39.5Median: 39Median: 40Gestational period(weeks)Mode: 39Mode: 40Lower quartile: 38Upper quartile: 40Interquartile range: 2Standard Deviation: 2.53Lower quartile: 38Upper quartile: 41Interquartile range: 3Standard Deviation: 2.79Range: 2Range: 11

Given information: The frequency statistics for the variables bright weight and gestational period.

Answered: what conclusions can we draw and what…

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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looking at the data (image provided) what conclusions can we draw and what does that mean for the research question : does chronic parental smoking affect the gestational period and birthweight of a baby?

Summary Statistics
Smoking parents
Frequency: 22
Mean: 3.13
Non-smoking parents
Frequency: 20
Mean: 3.50
Median: 3.18
Median: 3.38
Birthweight (kg)
Mode: 3.32
Mode: 3.5
Lower quartile: 3.54
Upper quartile: 2.74
Interquartile range: 0.80
Lower quartile: 3.93
Upper quartile: 3.14
Interquartile range: 0.79
Standard Deviation: 0.52
Standard Deviation: 0.63
Range: 2.65
Frequency: 22
Mean: 38.9
Range: 1.9
Frequency: 20
Mean: 39.5
Median: 39
Median: 40
Gestational period
(weeks)
Mode: 39
Mode: 40
Lower quartile: 38
Upper quartile: 40
Interquartile range: 2
Standard Deviation: 2.53
Lower quartile: 38
Upper quartile: 41
Interquartile range: 3
Standard Deviation: 2.79
Range: 2
Range: 11

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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