Subject Computer Science Python Programming


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ci = None #Your answer here
print("The concentration is:", mean, "+/-", ci, " (ppt)")
The concentration is: 25.6566508814 +/- None (ppt)
Problem 2: Calculate the 99% confidence interval for the concs data set above.

ci = None #Your answer here
print("The concentration is:", mean, "+/-", ci, " (ppt)")
The concentration is: 25.6566508814 +/- None (ppt)
You should see that the 99% confidence interval is larger than the 95% confidence interval.

The 95% confidence interval means that if you were to make the measurement 100 times, the true population mean (in this case 28 ppt) would fall in the interval 95 times on average.

This would take forever to do experimentally but is easy to do with computers. First, we need to learn how to use an "if" statement in Python. If statements are fairly commonsense logical statements. If the stament is true, it will execute the indented code. If the statement is false, it will not execute it. You can combine logical tests with "and" and "or" statements. An "else" statment is executed if the "if" statement is not executed. Take a look at some examples:

if True:
if False:
if False:
    print("Else True")
if 2 < 3: # < is less than
    print("2 < 3")
if 3 < 2:
    print("No way dude!")
if 2 < 3 and 3 < 4:
    print("2 < 3 and 3 < 4")
if 2 < 3 or 2 > 3: # > is greater than
    print("Ok, well at least one was correct")
if x==2: # == is a test for equivalence
    print('x equals 2')
if x!=3: # != is a test for not equal
    print("x is not equal to 3")...

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