Answer:
Water should be greater than 946.11 gallons per week to prevent the pool from drying.
Step-by-step explanation:
You have an outdoor swimming pool that is 5.0 m wide and 12.0 m long.
The height of water evaporated is = 2.35 inch
We will convert this to m.
1 inch = 0.0254 meter
So, 2.35 inch = meter
Now, volume of water in the pool = cubic meter per week.
1 cubic meter = 264.172 gallons
So, 3.5814 cubic meter = gallons
Hence, the volume of the water that should be poured in the swimming pool should be greater than 946.11 gallons per week to prevent the pool from drying.
Answer:
At least 9604 drivers need to be surveyed to be 95% confident that the population proportion is estimated to within 0.01.
If confidence level is chosen higher than 95% then minimum sample size requried in the survey increases
Step-by-step explanation:
The following formula 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 population proportion who always buckle up before riding in a car (estimated as 0.5 when unknown)
- z is the corresponding z-score for 95% confidence level (1.96)
- ME is the margin of error in the estimation (0.01)
Then,
n≥0.5×0.5 × ≈ 9604
If confidence level is chosen higher than 95% then the z value in the equation would be bigger than 1.96. Therefore minimum sample size requried in the survey increases.
(a)have aseconf ques. ans
Answer:
Step-by-step explanation:
<h3>Hope it is helpful....</h3>
2/3 the club is 24 people so
Needed more 4 people vote yes