Answer:
There is 95% confidence that the population proportion of people from Vermont who exercised for at least 30 minutes a day 3 days a week is between 55.9% and 74.7%.
Step-by-step explanation:
We have to answer the population proportion for Vermont.
We can only do it by a confidence interval, as we only have information from a sample.
This sample, of size n=100, has a proportion p=0.653.
The degrees of freedom are:
We will calculate a 95% confidence interval, which for df=99 has a critical value of t of t=1.984.
The margin of error can be calculated as:
Then, the upper and lower bounds of the confidence interval are:
Then, we can say that there is 95% confidence that the population proportion of people from Vermont who exercised for at least 30 minutes a day 3 days a week is between 55.9% and 74.7%.
Try using tiger algebra. It helps me when brainly doesn't have the answer
Answer:A
Step-by-step explanation:
The circle is open eliminating the equal to options, then look at the arrow, which is going negative showing x < 5
I'm going to guess you probably meant to type Distributive property...
To use the distributive property, you take the number outside of the parenthesis and multiply it by everything inside.
To begin, we take -3 and multiply it by n.
-3(n) = -3n
Now, we multiply -3 by -4. (We are multiplying by -4 and not +4 since there is a minus sign in front of the four.)
-3 * -4 = 12
(Two negatives make a positive!)
So, the final answer is -3n + 12.
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