A study is conducted to compare three new appetite suppressants (A, B, and C) to a placebo in terms of their effect on weight reduction. A total of 80 participants are involved and are randomly assignned to the comparison groups in equal numbers. The outcome of interest is weight reduction, measured in pounds. The data shown in the table below are observed after 3 months on treatment. Is there a significant difference in mean weight reduction among the four treatments? Use a 5% level of significance. (Hint: SST=1889) **Table 7-61: Weight Reduction by Treatment**This table presents data on weight reduction achieved through various treatments labeled as A, B, C, and a Placebo group. The results are expressed in terms of the mean weight reduction along with the standard deviation (SD) for each treatment.- **Treatment A:** - Mean weight reduction: 6.4 - Standard deviation: 4.1- **Treatment B:** - Mean weight reduction: 8.9 - Standard deviation: 4.0- **Treatment C:** - Mean weight reduction: 2.2 - Standard deviation: 3.9- **Placebo:** - Mean weight reduction: 2.5 - Standard deviation: 4.3**Explanation:**- The Mean indicates the average weight reduction observed for each treatment group.- The Standard Deviation (SD) provides a measure of the variability or dispersion of weight reduction values within each group. A higher SD suggests greater variability among the participants' results in that group.

Name: A study is conducted to compare three new appetite suppressants (A, B,
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Description: A study is conducted to compare three new appetite suppressants (A, B, and C) to a placebo in terms of their effect on weight reduction. A total of 80 participants are involved and are randomly assignned to the comparison groups in equal numbers. The

Given: The 5% significance level is considered in which 80 participants get involved based on weight…

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MATLAB: An Introduction with Applications

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A study is conducted to compare three new appetite suppressants (A, B, and C) to a placebo in terms of their effect on weight reduction. A total of 80 participants are involved and are randomly assignned to the comparison groups in equal numbers. The outcome of interest is weight reduction, measured in pounds. The data shown in the table below are observed after 3 months on treatment. Is there a significant difference in mean weight reduction among the four treatments? Use a 5% level of significance. (Hint: SST=1889)

**Table 7-61: Weight Reduction by Treatment**

This table presents data on weight reduction achieved through various treatments labeled as A, B, C, and a Placebo group. The results are expressed in terms of the mean weight reduction along with the standard deviation (SD) for each treatment.

- **Treatment A:**
- Mean weight reduction: 6.4
- Standard deviation: 4.1

- **Treatment B:**
- Mean weight reduction: 8.9
- Standard deviation: 4.0

- **Treatment C:**
- Mean weight reduction: 2.2
- Standard deviation: 3.9

- **Placebo:**
- Mean weight reduction: 2.5
- Standard deviation: 4.3

**Explanation:**

- The Mean indicates the average weight reduction observed for each treatment group.
- The Standard Deviation (SD) provides a measure of the variability or dispersion of weight reduction values within each group. A higher SD suggests greater variability among the participants' results in that group.

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