Answer: 0.6812
Step-by-step explanation:
Let p be the population proportion of trees are infested by a bark beetle.
As per given: p= 12%= 0.12
Sample size : n= 1000
Number of trees affected in sample = 1000
Sample proportion of trees are infested by a bark beetle. =
Now, the z-test statistic :
So,
Hence, the value of the z-test statistic = 0.6812 .
Answer:
8.27
Step-by-step explanation:
subtracting a negative number creates a positive
two negatives = a positive
No it is not a complete sentence
90 degrees
Acute tri
some trapezoids are paralellelograms
Answer:
Step-by-step explanation: