Refer to Exhibit 13-4. What is the correct procedure to use in Excel to test whether the population means are all equal? t-Test: Paired Two Sample for Means Anova: Single Factor z-Test: Two Sample for Means t-Test: Two Sample Assuming Unequal Variances

Refer to Exhibit 13-4. What is the correct procedure to use in Excel to test whether the population means are all equal? t-Test: Paired Two Sample for Means Anova: Single Factor z-Test: Two Sample for Means t-Test: Two Sample Assuming Unequal Variances

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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Question

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**Exhibit 13-4**

In a completely randomized experimental design involving five treatments, 13 observations were recorded for each of the five treatments. The following information is provided.

- SSTR = 200 (Sum Square Between Treatments)
- SST = 800 (Total Sum Square)

Refer to Exhibit 13-4. What is the correct procedure to use in Excel to test whether the population means are all equal?

- ○ t-Test: Paired Two Sample for Means
- ○ Anova: Single Factor
- ○ z-Test: Two Sample for Means
- ○ t-Test: Two Sample Assuming Unequal Variances

The information outlines a scenario in which ANOVA (Analysis of Variance) is the appropriate statistical method to test if there are any statistically significant differences between the means of three or more independent (unrelated) groups.

Expert Solution

Step 1

If there are two paired samples, then t-Test paired two sample for means is used.

If there are two independent samples with unequal variance, then t-Test two sample assuming unequal variances is used.

If there are two independent samples with known population variance, then z-Test two sample for means.

If there are two or more variables, then ANOVA single factor is used.

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