PLEASE ANSWER ALL! WILL RATE 1. 2. 3. 4. 5. Yeproductieffrt Energy spent on repr
ID: 133903 • Letter: P
Question
PLEASE ANSWER ALL! WILL RATE
1.
2.
3.
4.
5.
Yeproductieffrt Energy spent on reproduction constitutes an organism's "reproductive effort". The figure below shows the relationship between reproductive effort (number of cones produced) and growth measured as the relative width of annual rings for the Douglas fir, Pseudotsuga menzieii. The line represents the general trend as defined by the equation: y--1.70x + 107.5; n-32, , P-0.71, P-0.008. of cenererelow shows the relatnh 120 115 110 E 105 100 3 95 85 80 75 0 2 468 10 12 14 16 18 20 22 Mean number of cones per tree ( 102)Explanation / Answer
The P value represents the probability of getting an observed pattern by choice if Null hypothesis is true. The p value for this relation is 0.008 and hence it is the answer (option B). The value of n represents the sample size. So, the answer here is 32 (option B). In the diagram, the corresponding point on y axis for 100 on x axis is 91.5 (option D). There is a negative correlation between width of the rings and number of cones. From the correlation diagram, it can be seen that if the reproductive effort increases by one unit, there is increase in number of cones by 100 and decrease in the width of the rings by 170 mm. (Option C). Variation in reprodutive effort explains 1.7 percent of variation in tree ring width (option B).
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