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38 lines
934 B
Python
38 lines
934 B
Python
from .__init__ import *
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from ..__init__ import Generator
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def confidenceIntervalFunc():
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n = random.randint(20, 40)
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j = random.randint(0, 3)
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lst = random.sample(range(200, 300), n)
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lst_per = [80, 90, 95, 99]
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lst_t = [1.282, 1.645, 1.960, 2.576]
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mean = 0
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sd = 0
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for i in lst:
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count = i + mean
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mean = count
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mean = mean / n
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for i in lst:
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x = (i - mean)**2 + sd
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sd = x
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sd = sd / n
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standard_error = lst_t[j] * math.sqrt(sd / n)
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problem = 'The confidence interval for sample {} with {}% confidence is'.format(
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[x for x in lst], lst_per[j])
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solution = '({}, {})'.format(mean + standard_error, mean - standard_error)
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return problem, solution
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confidenceInterval = Generator("Confidence interval For sample S", 54,
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"With X% confidence", "is (A,B)",
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confidenceIntervalFunc)
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