Suppose a researcher is estimating the proportion of trees showing signs of disease in a local forest. They randomly sample 150 trees and find that 25 of them show signs of disease. Calculate the 95% confidence interval for p, the proportion of all trees in the forest showing signs of disease.
1 answer:
Answer:
And the 95% confidence interval would be given (0.107;0.227).
Step-by-step explanation:
Information given
number of trees with signs of disease
the sample selected
the proportion of trees with signs of disease
The confidence interval for the true proportion would be given by this formula
For the 95% confidence interval the significance is and , and the critical value would be
And replacing we got:
And the 95% confidence interval would be given (0.107;0.227).
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Hey there, Your correct answer would be "It is a vertex at it origin" Hope this helps.~Jurgen
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