Caitlin and Greg collect stamps. Each starts with a collection of 50 stamps. Caitlin adds 15 stamps to her collection each week.
1 answer:
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Answer:
The margin of error is 0.0206 = 2.06 percentage points.
The 95% confidence interval for the proportion of all student athletes in this country have been subjected to some form of hazing is (0.6794, 0.7206).
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 zscore that has a pvalue of .
For this problem, we have that:
95% confidence level
So , z is the value of Z that has a pvalue of
, so
.
The margin of error is:
The margin of error is 0.0206 = 2.06 percentage points.
The lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval for the proportion of all student athletes in this country have been subjected to some form of hazing is (0.6794, 0.7206).