a. t test for population mean or z test for population proportion b. μ or p H0:=, <, >, or ≠H1: =, <, >, or ≠c. z or t On average, Americans have lived in 2 places by the time they are 18 years old. Is this average less forcollege students? The 67 randomly selected college students who answered the survey question had lived inan average of 1.99 places by the time they were 18 years old. The standard deviation for the survey groupwas 0.3. What can be concluded at the a = 0.10 level of significance?a. For this study, we should use Select an answerb. The null and alternative hypotheses would be:Ho: ?vSelect an answer ↑H1: ?v Select an answerc. The test statistic ?v|(please show your answer to 3 decimal places.)

Given, On average American have lived in 2 places by the time they are 18 years old. The 67 randomly…

Answered: a. t test for population mean or z…

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. t test for population mean or z test for population proportion

b. μ or p

H_0:

_{=, <, >, or ≠}

H₁:

_{=, <, >, or ≠}

_{c. z or t}

On average, Americans have lived in 2 places by the time they are 18 years old. Is this average less for
college students? The 67 randomly selected college students who answered the survey question had lived in
an average of 1.99 places by the time they were 18 years old. The standard deviation for the survey group
was 0.3. What can be concluded at the a = 0.10 level of significance?
a. For this study, we should use Select an answer
b. The null and alternative hypotheses would be:
Ho: ?vSelect an answer ↑
H1: ?v Select an answer
c. The test statistic ?v
|(please show your answer to 3 decimal places.)

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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