4(1-3x)-14>4(2x+3)-9x
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Answer:
The 98% confidence interval for the probability of flipping a head with this coin is (0.4756, 0.7044).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of .
An experimenter flips a coin 100 times and gets 59 heads.
This means that
98% confidence level
So , z is the value of Z that has a p-value of
, so
.
The lower limit of this interval is:
The upper limit of this interval is:
The 98% confidence interval for the probability of flipping a head with this coin is (0.4756, 0.7044).