Answer:
At least 81 observations should be made to be 95% confident that the observed data is within a tolerance of ±10 percent of the population data.
Step-by-step explanation:
The following equation is used to compute the minimum sample size required to estimate the population proportion within the required margin of error:
n≥ p×(1-p) × where
- p is the estimated proportion of the time of the group was spent in cataloging (30% or 0.30)
- z is the corresponding z-score for 95% confidence level (1.96)
- ME is the margin of error (tolerance) in the estimation (10% or 0.10)
Then, n≥ 0.30×0.70 × ≈ 80.67
At least 81 observations should be made to be 95% confident that the observed data is within a tolerance of ±10 percent of the population data.
Random observations should include different employees, and sampling time should also be random.
Explanation:
(4a-3b^3)^2
(4a-3b^3)(4a-3b^3)
16a-12ab^3-12ab^3+9b^3
16a+9b3
Answer: (a+2)(3a-16)
Explanation: In the photo. Let me know if you have any questions about what I did! :)
Answer:
Step-by-step explanation: letter B is the right answer
1/2:5
1:10
2:20
The actual length of the room is 20 feet.