I need help with this question for math: "There are 5,280 feet in a mile. What part of a mile, in decimal form, will you drive u
1 answer:
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<u>Step-by-step explanation:</u>
The vertex form of an absolute value equation is: where
(h, k) is the vertex. In the given equation, , the h-value is 1/2 and the k-value is -2.
So, the vertex (h, k) = (1/2, -2)
Using the z-distribution, it is found that the 95% confidence interval for the true proportion of adults who said that they will travel more this year is (0.347, 0.433).
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 .
195 out of 500 people said they would take more vacations this year than last year, hence:
95% confidence level, hence, 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 95% confidence interval for the true proportion of adults who said that they will travel more this year is (0.347, 0.433).
A similar problem is given at brainly.com/question/15850972