Step-by-step explanation:
3rd one is answer
i hope it helps
Answer:
ummmmmmm is that the whole question cuz apearently im slow cuz i dont understand and im in 10th
Step-by-step explanation:
Answer:
The number of problems solved = 2000
Step-by-step explanation:
Let us assume the monthly quota of problems be x
number of problem solved in first week = 25 % of x =
number of problems solved in 2nd week = 110% of (problems solved in 1st week)
=
=
number of problem solved 3rd week= 60% of ( problems solved in 1st and 2nd week)
=
=
=
number of problem solved in 4th week =
now we have
number of problems solved in ll 4 weeks = x
Hence the number of problems solved = 2000
Answer:
The answer is below
Step-by-step explanation:
Given that:
Confidence interval (C) = 99%, mean (μ) = 19.5, standard deviation (σ) = 5.2, sample size (n) = 35
α = 1 - C = 1 - 0.99 = 0.01
α/2 = 0.005
The z score of α/2 (0.005) is the same as the z score 0.495 (0.5 - 0.005) which is equal to 2.576.
The margin of error (E) is given as:
The confidence interval = (μ ± E) = (19.5 ± 2.264) = (17.236, 21.764).
The confidence interval is between 17.236 and 21.764.