Answered: In CDMX, the population average of 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

See similar textbooks

Related questions

Question

100%

In CDMX, the population average of the age of pregnant women is 19 years.

A sociologist believes that in the city where she lives the average is higher.

For this, she selected 72 pregnant women, obtaining a mean of 20.7 years with a standard deviation of 6.3 years.

We want to test the research hypothesis with a significance level of 0.05.

Choose

1.The correct conclusion
2.The correct interpretation

Select one:

1.H0 is rejected
2. With a confidence level of 95%, it can be ensured that the population mean age of pregnant women is not greater than 19 years in the city of the sociologist.

1.H0 is not rejected
2. With a confidence level of 95%, it can be ensured that the population mean age of pregnant women is not greater than 19 years in the city of the sociologist.

1.H0 is not rejected
2. It can be ensured, with 95% confidence, that the population mean age of pregnant women is greater than 19 years in the city of the sociologist

1.H0 is rejected
2. It can be ensured, with 95% confidence, that the population mean age of pregnant women is greater than 19 years in the city of the sociologist

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