Examine your ANOVA table to see if there is a significant difference between cannabis use and social network size, anxiety levels and social network size, and the interaction between cannabis use and anxiety levels. Look at your p value to determine whether there is a significant difference. Remember, if your p value is less than 0.05, there is a significant difference. State in the appropriate question blank on your worksheet whether there was a significant relationship in the following way. In each parentheses, select the word or symbol in red that best fits your data. Replace “df anxiety levels”, “df residual”, and “F value” with the corresponding value from your ANOVA table: “A two-way ANOVA was used to examine the effect of anxiety level and cannabis use on social network size. There (was/was not) a significant main effect of the level of anxiety on social network size, (F (df anxiety levels, df residuals) = F value, p(</>).05., and (was/was not) a significant main effect of cannabis use status on social network size (F (df for cannabis use, df residuals) = F value, p(</>).05.). There (was/was not) a statistically significant interaction between the effects of cannabis use and anxiety levels on social network size, (F (df for interaction, df residuals) = F value, p(</>).05)

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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Examine your ANOVA table to see if there is a significant difference between cannabis use and social network size, anxiety levels and social network size, and the interaction between cannabis use and anxiety levels. Look at your p value to determine whether there is a significant difference. Remember, if your p value is less than 0.05, there is a significant difference.
State in the appropriate question blank on your worksheet whether there was a significant relationship in the following way. In each parentheses, select the word or symbol in red that best fits your data. Replace “df anxiety levels”, “df residual”, and “F value” with the corresponding value from your ANOVA table:
1. “A two-way ANOVA was used to examine the effect of anxiety level and cannabis use on social network size. There (was/was not) a significant main effect of the level of anxiety on social network size, (F (df anxiety levels, df residuals) = F value, p(</>).05., and (was/was not) a significant main effect of cannabis use status on social network size (F (df for cannabis use, df residuals) = F value, p(</>).05.). There (was/was not) a statistically significant interaction between the effects of cannabis use and anxiety levels on social network size, (F (df for interaction, df residuals) = F value, p(</>).05)”.

ΑNOVA
ANOVA - social.network.size
Cases
Sum of Squares df Mean Square
F
anxiety levels
Cannabis use
anxiety levels * Cannabis use
773.592 2
386.796 295.107 <.001
1.006 1
1.006
0.768 0.383
6.478 2
3.239
2.471 0.090
Residuals
123.206 94
1.311
Note. Type III Sum of Squares

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