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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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Can you please give me step by step instructions on how to complete the following tests in SPSS?

1. T-Tests (one sample hypotheses): Assuming the mean age of the children in the population is 7.2 years, and you have one sample distribution. Conduct a-two tailed t-test comparing the study sample mean "Age" and the population mean "Age".

1b. Conduct a one-sample t-test and summarize results

2. Plot a histogram showing the distribution of the variable "raw score/performance IQ" and describe your result

3. T-Tests (one sample hypotheses): Assuming the mean "raw score/performance IQ" of the children in the population is 120, and you have one sample distribution. Conduct a-two tailed t-test comparing the study sample mean "raw score/performance ID" and the population mean "raw score/performance IQ".

3. b Conduct a one-sample t-test and compute the 95% confidence intervals for the difference in "raw score/performance IQ

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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