Answer:
0.68
Step-by-step explanation:
The formula for z test is given above as:
z = p' - p/√(pq/n)
p' = sample proportion
= Number of infested samples(trees)/ Number of samples
p' = 127/1000 = 0.127
p = 12% = 0.12
q= 1 - 0.12 = 0.88
n = number of samples = 1000
z = 0.127 - 0.12/√(0.88 × 0.12/1000)
z = 0.007/√0.0001056
z = 0.007 /0.0102761861
z = 0.6811865737
Therefore, the z test statistic is approximately ≈ 0.68
It is a ratio so basically their is no real anwser for it
Answer:
c.11
Step-by-step explanation:
h + 9 < 20
-9 -9
--------------------
h<20-9
h<11
Answer:
I don't know
Step-by-step explanation:
I can't see the image for the problem or I don't ser any questions
Answer: 1 13/30
Step-by-step explanation: Turn into a mixed number