Answer:
A RCRA characteristic hazardous waste is a solid waste that exhibits at least one of four characteristics defined in 40 CFR Part 261 subpart C — ignitability (D001), corrosivity (D002), reactivity (D003), and toxicity (D004 - D043). combustible, or have a flash point less than 60 °C (140 °F).
Answer:
The density of the unknown liquid is 1.025 kg/m³ (considering the density of the water as 1.000 kg/m³)
Explanation:
The hydrometer works by the Archimedes principle. The cylinder floats in the liquid because the hydrostatic thrust is equal to the weight force. This means:
If we measure 2 fluids, the weight of the hydrometer is the same, so:
If the original watermark height is 12.3cm (H₁) and the mark for water has risen 0.3 cm above the unknown liquid–air interface, the height of the unknown liquid mark is 12cm (H₂). Therefore:
Answer:
Now we can decide based on the significance level 
. If 
we reject the null hypothesis and in other case we FAIL to reject the null hypothesis.
we see that 
so then we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly less than 15
we see that 
so then we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true mean is NOT significantly less than 15
we see that so then we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true mean is NOT significantly less than 15
Explanation:
For this case they conduct the following system of hypothesis for the ture mean of interest:
Null hypothesis: 
Alternative hypothesis: 
The statistic for this hypothesis is:
And on this case the value is given 
For this case in order to take a decision based on the significance level we need to calculate the p value first.
Since we have a lower tailed test the p value would be:
Now we can decide based on the significance level . If we reject the null hypothesis and in other case we FAIL to reject the null hypothesis.
we see that so then we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly less than 15
we see that so then we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true mean is NOT significantly less than 15
we see that so then we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true mean is NOT significantly less than 15
Answer:
The code is given below in python
# Code Block 1
count = 0 # count variable
total = 0 # total variable
enter = '' # input variable
while enter != 'stop':
enter = input('Enter a grade:' )
if enter != 'stop' and enter.isdigit():
total += int(enter) # add to total value
count = count + 1 # then to the count
print float(total) / count
# Code Block 2
numbers = []
while enter != 'stop':
enter = input('Enter a grade:' )
if enter != 'stop':
numbers.append(int(enter))
print sum(numbers) / float(len(numbers))
Manuel is a Gas compressor
