Mathematics
Mathematics, 17.03.2020 18:51, jaymoore9542

An insurance company is reviewing its current policy rates. When originally setting the rates, they believed that the average claim amount was $1,800. They are concerned that the true mean is actually higher than this because they could potentially lose a lot of money. They randomly select 40 claims and calculate a sample mean of $1,950. Assuming that the standard deviation of claims is $500, and set α= 0.05; α= 0.1, test to see if the insurance company should be concerned.

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:30, nina288
Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?
Answers: 1
image
Mathematics, 22.06.2019 00:50, jacobp0712
There are 8 movies that you would like to see currently showing in theatres. in how many different ways can you choose a movie to see this saturday and one to see this sunday?
Answers: 1
image
Mathematics, 22.06.2019 01:20, Hockeypro1127
The bottom of a slide at the playground is 6 feet from the base of the play set. the length of the slide is 10 feet. how tall is the slide. 11.66 feet 10 feet 6 feet 8 feet
Answers: 2
image
Mathematics, 22.06.2019 01:50, QueensQueens
Lesson 9-3 for items 8-10, a square is drawn in the coordinate plane, with vertices as shown in the diagram. then the square is reflected across the x-axis. -2 4 8. the function that describes the reflection is (x, y) - a. (x, y-3). b. (x, y-6). c. (-x, y). d. (x,- y).
Answers: 2
Do you know the correct answer?
An insurance company is reviewing its current policy rates. When originally setting the rates, they...

Questions in other subjects:

Konu
Mathematics, 26.05.2021 22:30
Konu
Mathematics, 26.05.2021 22:30