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%.
Total cost of croissants produced = $1.75 x 300 = $525
Total expected revenue = (100 + 45%)/100 x $525 = 1.45 x 525 = $761.25
Number of croissants expected to spoint = 0.10 x 300 = 30 croissants.
Number of croissants sold = 300 - 30 = 270 croisants.
Unit price of each croissant = $761.25/270 = $2.82
Therefore, each croissant should sell for $2.82
Answer:
Both people did the same type of general question, but Jenna's method uses the distributive property to do it mentally.
Step-by-step explanation:
Jenna's Method: Uses distributive property to break it all down and do it mentally.
Mia's Method: She broke the equation down so much that the answer will be more complex to find.
Answer:
1 : 9.75 * 10⁷
Step-by-step explanation:
To find n, we have to divide the real distance by the scale distance. This is 7.8 * 10⁸ / 8 = 0.975 * 10⁸ = 9.75 * 10⁷ which means that the ratio is 1 : 9.75 * 10⁷.
If you would like to know how many people are going to Langdale, you can calculate this using the following steps:
18 people
half of them: 18/2 = 9 people
Result: 9 people are going to Langdale.
