EFFECTS OF CALCIUM ON MORTALITY RATE

  1. Please calculate the mean , median , and mode  of the data set below.  You should round the mean to TWO decimal places or your answer may be marked incorrect.
100
35
10
27
5
87
67
36
82
71
54
11
93
58
33
42
26
42
0

 

 

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QUESTION 2

  1. A school district is trying to determine if an analysis score of students from two different schools is the same.  Using the data below, what conclusion can you provide?

 

You should provide a sentence conclusion, APA formatting of your statistics, and copy and paste your calculation from Excel.  You may find it worth your time to also include your hypotheses.

 

East Analysis West Analysis
82 35
46 20
23 36
48 38
72 56
40 60
75 36
79 41
57 48
75 74
44 59
85 51
40 22
80 77
57 75
76 30
63 45
20 84
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QUESTION 3

  1. For the following output, write a paragraph (3-4 sentences) discussing the result.  Your paragraph should indicate:
    1. What test was used
    2. What the test measures
    3. Whether the test is significant
    4. What the result/decision was in terms of the variables and if any additional testing is necessary.
    5. Report the statistics in APA format.
    6. Make a statement of conclusion about what a researcher would learn from this result. (You may create what causes the differences in groups such as: location, worksheets, demographics, etc.)

 

SUMMARY            
Groups Count Sum Average Variance    
Group 1 24 1449 60.375 638.4185    
Group 2 24 1490 62.08333 514.4275    
Group 3 24 1338 55.75 500.8913    
             
             
             
Source of Variation SS df MS F P-value F crit
Between Groups 4253.153 2 2126.576 3.857765 0.02581192 3.129644
Within Groups 38035.96 69 551.2458      
             
Total 42289.11 71        

 

 

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QUESTION 4

  1. Write one to two sentences interpreting the output below and identifying the test used.  Be sure to use proper APA formatting for full credit.

 

SUMMARY OUTPUT              
                 
Regression Statistics              
Multiple R 0.140082939              
R Square 0.01962323              
Adjusted R Square -0.029395609              
Standard Error 7.913238153              
Observations 22              
                 
ANOVA                
  df SS MS F Significance F      
Regression 1 25.06778406 25.0677841 0.40032 0.534091772      
Residual 20 1252.386761 62.6193381          
Total 21 1277.454545            
                 
  Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0%
Intercept 24.86622769 21.1210567 1.1773193 0.252889 -19.19152454 68.92397992 -19.19152454 68.92397992
Quality -0.154565933 0.244292449 -0.6327086 0.534092 -0.664151053 0.355019187 -0.664151053 0.355019187
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QUESTION 5

  1. Write one or two sentences intrepeting the following output while also identifying the test used.  Remember to report statistics in APA format for full credit.

 

t-Test: Two-Sample Assuming Unequal Variances
     
  Group 1 Efficiency Group 2 Efficiency
Mean 44 59.44444444
Variance 255.4117647 426.2614379
Observations 18 18
Hypothesized Mean Difference 0  
df 32  
t Stat -2.50969204  
P(T<=t) one-tail 0.008668874  
t Critical one-tail 1.693888748  
P(T<=t) two-tail 0.017337747  
t Critical two-tail 2.036933343  
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