EN e weba ssign.net/web/Student/Assignment-Responses/submit?dep3D28355076&tags=au Among various ethnic groups, the standard deviation of heights is known to be approximately th six males are surveyed from a particular country. The sample mean is 71 inches. The sample sta Part (a) Find the following. (Enter exact numbers as integers, fractions, or decimals.) () (m) O Part (b) In words, define the random variables X and X. OX is the number of males in this country, and X is the number of males in the study. OX is the mean height from a sample of 46 males, and X is the height of a male from this country. X is the height of a male from this country and X is the mean height from a sample of 46 males. OXis the number of males in the study, and X is the number of males in this country. O Part (c) Which distribution should you use for this problem? Explain your choice. O The standard normal distribution should be used because the population standard deviation is known. O The Student's t-distribution should be used because the sample standard deviation is given. O The standard normal distribution should be used because the mean is given. O The Student's t-distribution should be used because the sample mean is smaller than 30. A Part (d) Construct a 95% confidence interval for the population mean height of males of this country.

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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Among various ethnic groups, the standard deviation of heights is known to be approximately three inches We wish to construct a 95 confidence interval for the mean height of males from certain males are surveyed from a particular countryThe sample mean is 71 inchesThe sample standard deviation is 2.7

EN
e weba ssign.net/web/Student/Assignment-Responses/submit?dep3D28355076&tags=au
Among various ethnic groups, the standard deviation of heights is known to be approximately th
six males are surveyed from a particular country. The sample mean is 71 inches. The sample sta
Part (a)
Find the following. (Enter exact numbers as integers, fractions, or decimals.)
()
(m)
O Part (b)
In words, define the random variables X and X.
OX is the number of males in this country, and X is the number of males in the study.
OX is the mean height from a sample of 46 males, and X is the height of a male from this country.
X is the height of a male from this country and X is the mean height from a sample of 46 males.
OXis the number of males in the study, and X is the number of males in this country.
O Part (c)
Which distribution should you use for this problem? Explain your choice.
O The standard normal distribution should be used because the population standard deviation is known.
O The Student's t-distribution should be used because the sample standard deviation is given.
O The standard normal distribution should be used because the mean is given.
O The Student's t-distribution should be used because the sample mean is smaller than 30.
A Part (d)
Construct a 95% confidence interval for the population mean height of males of this country.

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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