The following table shows the systolic blood pressure of 5 certified public accountants before tax season and after tax season begins. Before11012498105118After11412897108122If you plan to test if there is a difference in their blood pressure, answer the following:Is this means or proportions? [ Select ] ["proportions", "means"] Is this one-sample, two-sample independent, or two sample matched-pairs(dependent)? [ Select ] ["two-sample independent", "two sample matched-pairs(dependent)", "one-sample"] Which distribution should you use? [ Select ] ["t", "z"] At the 5% significance level, what is the initial conclusion? [ Select ] ["reject Ho", "fail to reject Ho"] At the 1% significance level, what is the initial conclusion? [ Select ] ["reject Ho", "Fail to reject Ho"]

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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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The following table shows the systolic blood pressure of 5 certified public accountants before tax season and after tax season begins.

Before	110	124	98	105	118
After	114	128	97	108	122

If you plan to test if there is a difference in their blood pressure, answer the following:

Is this means or proportions? [ Select ] ["proportions", "means"]
Is this one-sample, two-sample independent, or two sample matched-pairs(dependent)? [ Select ] ["two-sample independent", "two sample matched-pairs(dependent)", "one-sample"]
Which distribution should you use? [ Select ] ["t", "z"]
At the 5% significance level, what is the initial conclusion? [ Select ] ["reject Ho", "fail to reject Ho"]
At the 1% significance level, what is the initial conclusion? [ Select ] ["reject Ho", "Fail to reject Ho"]

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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The following table shows the systolic blood pressure of 5 certified public accountants before tax season and after tax season begins.

Before	110	124	98	105	118
After	114	128	97	108	122

If you plan to test if there is a difference in their blood pressure, answer the following:

At the 5% significance level, what is the initial conclusion? [ Select ] ["reject Ho", "fail to reject Ho"]
At the 1% significance level, what is the initial conclusion? [ Select ] ["reject Ho", "Fail to reject Ho"]

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