Help!!
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
Help!!
![It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of
minutes per day that people spend standing or walking. Among mildly obese people, the mean number of minutes of
daily activity (standing or walking) is approximately Normally distributed with 374 minutes and standard deviation 64
minutes. The mean number of minutes of daily activity for lean people is approximately Normally distributed with 522
minutes and standard deviation 104 minutes. A researcher records the minutes of activity for an SRS of 5 mildly obese
people and an SRS of 5 lean people.
(a) What is the probability that the mean number of minutes of daily activity of the 5 mildly obese people exceeds 400
minutes? (Enter your answer rounded to four decimal places.)
probability:
(b) What is the probability that the mean number of minutes of daily activity of the 5 lean people exceeds 400 minutes?
(Enter your answer rounded to four decimal places.)
probability:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc38f1e5e-525c-46d4-a67d-f9f323a8f4ce%2F34a09d5e-3c98-45f0-8adf-65f0ad804e47%2F1w5ks8o_processed.png&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
(a)
Given:
μ=374, σ=64, n=5
The corresponding z-value needed to be computed is:
The probability that the mean number of minutes of daily activity of the 5 mildly people exceeds 400 minutes is:
By using the standard normal table:
Hence, the probability that the mean number of minutes of daily activity of the 5 lean people exceeds 400 minutes is:
- Probability = 0.1818
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 8 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)