Instructions: In 2013, Sherman et al. conducted a study to examine how different forms of communication (text messaging, vs. video chat vs. telephone conversation) can influence feelings of closeness and bonding among friends. They instructed participants to come into the lab with their best friend, and randomly assigned them to engage in a 5-minute conversation in one of the three modalities (text message, video chat, or phone conversations). After the conversation, they measured feelings of closeness on a scale of 1-20. Let's imagine that you decided to replicate this study with 45 participants (15 participants in each group). You can find the data in the questions below.

Your job will be to figure out whether the three groups are different. This is a long one! Take your time figuring out the answers.

Flag question: Question 1

Question 1

0.25pts

What is the appropriate test statistic to calculate to figure out if the three groups differ?

Group of answer choices

Independent samplet-test

Dependent samplet-test

ztest

an ANOVA (Ftest)

Flag question: Question 2

Question 2

0.25pts

State the null hypothesis.

Group of answer choices

Ho: 1 = 2 = 3

Ho: X1 ? X2 ? X3

Flag question: Question 3

Question 3

0.25pts

State the alternative hypothesis

Group of answer choices

H1: 1 = 2 = 3

H1: X1 ? X2 ? X3

Flag question: Question 4

Question 4

0.25pts

What is the acceptable level of risk?

Group of answer choices

P>.05

P<.1>

P= .5

p<.05>

Flag question: Spacer

Here is the dataset for each group. I suggest you downloadthis table

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to help you do your calculation. I included a few calculations in the attached table to help you out.

Text X2 Video X2 Phone XZ Chat Convo 36 12 144 10 16 11 121 6 64 5 8 64 11 121 6 10 100 12 144 un 25 11 121 36 25 in 25 10 100 25 15 225 16 13 169 6 36 14 196 25 36 56 16 64 15 15 15 N EX 144 SEX M 5.93 9.6Multiple Comparisons Dependent Variable: Bonding Tukey HSD Mean 95% Confidence Interval (1) Group (J) Group Difference (1-J) Std. Error Sig Lower Bound Upper Bound Text Video -3.66667 1.00137 002 -6.0995 -1.2338 Phone 60000 1.00137 821 -1.8328 3.0328 Video Text 3.66667" 1.00137 002 1.2338 6.0995 Phone 4.26667' 1.00137 000 1.8338 6.6995 Phone Text -.60000 1.00137 821 -3.0328 1.8328 Video -4.26667' 1.00137 000 -6.6995 -1.8338