Question

1 2 1 2 14 24 18 TO 1 . 17 10 16 a What is the independent variable? What is the dependent variable? What test did you use to analyze the data? d. is the best cant How do you know? Write the statistical notation in APA style Report the findings in 1-3 ans. Make sure to include the independent the dependent entstand please answer the questions also any way for a creation of a graph including SEM bars to display the results? if not- its okay! just need questions answered! ill give thumps up! thanks

the second picture is added and its more clear.

Answer 1

a)

recess time

b)

Number of minutes taken for calm down

c)

Paired t test

d)

Ho :   µd=   0                  
Ha :   µd >   0                  
                          
Level of Significance ,    α =    0.01                  
                          
sample size ,    n =    10                  
                          
mean of sample 1,    x̅1=   18.900                  
                          
mean of sample 2,    x̅2=   8.600                  
                          
mean of difference ,    D̅ =ΣDi / n =   10.3000                  
                          
std dev of difference , Sd =    √ [ (Di-Dbar)²/(n-1) =    5.3759                  
                          
std error , SE = Sd / √n =    5.3759   / √   10   =   1.7000      
                          
t-statistic = (D̅ - µd)/SE = (   10.3   -   0   ) /    1.7000   =   6.059
                          
Degree of freedom, DF=   n - 1 =    9                  
t-critical value , t* =        2.8214   [excel function: =t.inv(α,df) ]               
                          
p-value =        0.0001   [excel function: =t.dist.rt(t-stat,df) ]               
Decision:   p-value <α , Reject null hypothesis                      

Significant

e)

p-value =        0.0001   [excel function: =t.dist.rt(t-stat,df) ]               
Decision:   p-value <α , Reject null hypothesis  

f)

There are sufficient evidence that longer the recess period, less time required to calm

Please let me know in case of any doubt.

Thanks in advance!

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