Question

Please Answer Quickly An environmentalist wants to determine the relationships between the numbers (in thousands) of forest fires over the year and the number (in hundred thousands) of acres burned. The data for 7 recent years are shown. Number of fires x 69 47 84 62 57 45 72 Number of acres burned y 42 26 51 15 30 15 62 a) Compute the value of the correlation coefficient. Round your answer to three decimal places. 1. r=0.778 2. r=0.124 3. r=0.548 b) State the hypotheses. 1. H0:ρ=0 H1:ρ≠0 2. H0:ρ≥0 H1:ρ<0 3. H0:ρ≤0 H1:ρ>0 c) What can you conclude about the null hypothesis. 1. Reject the null hypothesis. 2.Do not reject the null hypothesis. d) Give a brief conclusion of the type of relationship . 1. There is a significant linear relationship between the number of forest fires and the number of acres burned 2.There is not a significant linear relationship between the number of forest fires and the number of acres burned.

          Please Answer Quickly
An environmentalist wants to determine the relationships between
the numbers (in thousands) of forest fires over the year and the
number (in hundred thousands) of acres burned. The data for 7
recent years are shown.           
                 
                 
                 
            
Number of fires x           
                 
 69      47       84 
    62      57     
 45      72     
Number of acres burned   y       
      42      26     
51       15       30 
    15      62       
           
a) Compute the value of the correlation coefficient. Round your
answer to three decimal places.
1.
   r=0.778
2.
   r=0.124
3.
   r=0.548
b) State the hypotheses.
1. 
H0:ρ=0 
H1:ρ≠0 
2.
H0:ρ≥0 
H1:ρ<0 
3.
H0:ρ≤0 
H1:ρ>0 
c) What can you conclude about the null hypothesis.
1. Reject the null hypothesis.
2.Do not reject the null hypothesis.
d) Give a brief conclusion of the type of relationship .
1. There is a significant linear relationship between the number
of forest fires and the number of acres burned
2.There is not a significant linear relationship between the
number of forest fires and the number of acres burned.

Added by Katelyn S.

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