On the basis of data provided by a salary survey, the variance in annual salaries for seniors in public accounting firms is approximately 2.1 and the variance in annual salaries for managers in publicaccounting firms is approximately 11.1. The salary data were provided in thousands of dollars. Assuming that the salary data were based on samples of 25 seniors and 26 managers, test to determinewhether there is a significant difference between the variances of salaries for seniors and managers. At a 0.05 level of significance, what is your conclusion?State the null and alternative hypotheses.202202%DHo: 012> 02Hai 01H3:20222Hoi o,?soz?2Ha: 0122Ho: 01Ha: 01022+ 022Find the value of the test statistic. (Round your answer to two decimal places.)Find the p-value. (Round your answer to four decimal places.)p-value =State your conclusion.Reject Ho. We can conclude that the population variances are not equal for seniors and managers.Reject Ho. We cannot conclude that the population variances are not equal for seniors and managers.Do not reject Ho. We cannot conclude that the population variances are not equal for seniors and managers.Do not reject Ho. We can conclude that the population variances are not equal for seniors and managers.

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Description: On the basis of data provided by a salary survey, the variance in annual salaries for seniors in public accounting firms is approximately 2.1 and the variance in annual salaries for managers in publicaccounting firms is approximately 11.1. The salar

Solution: Given information: n1=25 Sample size of seniors n2=26 Sample size of managerss21=2.1…

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On the basis of data provided by a salary survey, the variance in annual salaries for seniors in public accounting firms is approximately 2.1 and the variance in annual salaries for managers in public accounting firms is approximately 11.1. The salary data were provided in thousands of dollars. Assuming that the salary data were based on samples of 25 seniors and 26 managers, test to determine whether there is a significant difference between the variances of salaries for seniors and managers. At a 0.05 level of significance, what is your conclusion? State the null and alternative hypotheses. Hoi o,? + Hg: 0,? = 0,? Hoi o,? > o,? Ho: 0,? = 0,? Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. Reject Ho. We can conclude that the population variances are not equal for seniors and managers. Reject Ho. We cannot conclude that the population variances are not equal for seniors and managers. Do not reject Ho. We cannot conclude that the population variances are not equal for seniors and managers.

On the basis of data provided by a salary survey, the variance in annual salaries for seniors in public accounting firms is approximately 2.1 and the variance in annual salaries for managers in public accounting firms is approximately 11.1. The salary data were provided in thousands of dollars. Assuming that the salary data were based on samples of 25 seniors and 26 managers, test to determine whether there is a significant difference between the variances of salaries for seniors and managers. At a 0.05 level of significance, what is your conclusion? State the null and alternative hypotheses. Hoi o,? + Hg: 0,? = 0,? Hoi o,? > o,? Ho: 0,? = 0,? Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. Reject Ho. We can conclude that the population variances are not equal for seniors and managers. Reject Ho. We cannot conclude that the population variances are not equal for seniors and managers. Do not reject Ho. We cannot conclude that the population variances are not equal for seniors and managers.

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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Concept explainers

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.

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On the basis of data provided by a salary survey, the variance in annual salaries for seniors in public accounting firms is approximately 2.1 and the variance in annual salaries for managers in public
accounting firms is approximately 11.1. The salary data were provided in thousands of dollars. Assuming that the salary data were based on samples of 25 seniors and 26 managers, test to determine
whether there is a significant difference between the variances of salaries for seniors and managers. At a 0.05 level of significance, what is your conclusion?
State the null and alternative hypotheses.
2
02
2
02
%D
Ho: 01
2
> 02
Hai 01
H3:
2
02
2
2
Hoi o,?soz?
2
Ha: 01
2
2
Ho: 01
Ha: 01
02
2
+ 02
2
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to four decimal places.)
p-value =
State your conclusion.
Reject Ho. We can conclude that the population variances are not equal for seniors and managers.
Reject Ho. We cannot conclude that the population variances are not equal for seniors and managers.
Do not reject Ho. We cannot conclude that the population variances are not equal for seniors and managers.
Do not reject Ho. We can conclude that the population variances are not equal for seniors and managers.

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