Min wants to make 100 name tags with ribbon attached to them. Each name tag requires 5 centimeters of ribbon. She has 3.25 meter
1 answer:
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Answer:
The 95% confidence interval for the true proportion of bottlenose dolphin signature whistles that are type a whistles is (0.4687, 0.6123).
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 lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval for the true proportion of bottlenose dolphin signature whistles that are type a whistles is (0.4687, 0.6123).
8/9 divided by 3 = 8/27
have a wonderful day! the steps are down below! :)
have a wonderful day! the steps are down below! :)