Mathematics, 25.06.2021 04:10 fabiolafrancklin10
Part 1
Scores for a common standardized college aptitude test are normally distributed with a mean of 497 and a standard deviation of 115. Randomly selected men are given a Test Prepartion Course before taking this test. Assume, for sake of argument, that the test has no effect.
If 1 of the men is randomly selected, find the probability that his score is at least 599.9.
P(X > 599.9) =
Enter your answer as a number accurate to 4 decimal places. NOTE: Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
If 5 of the men are randomly selected, find the probability that their mean score is at least 599.9.
P(M > 599.9) =
Part 2
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 197.4-cm and a standard deviation of 1.6-cm. For shipment, 13 steel rods are bundled together.
Find the probability that the average length of a randomly selected bundle of steel rods is greater than 198.5-cm.
P(M > 198.5-cm) =
Answers: 2
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 15:20, heyrosaphoto3159
The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time
Answers: 1
Mathematics, 21.06.2019 17:00, joshuag5365
Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.
Answers: 3
Mathematics, 21.06.2019 18:00, milagrosee12
Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.
Answers: 3
You know the right answer?
Part 1
Scores for a common standardized college aptitude test are normally distributed with a mean...
Questions in other subjects:
World Languages, 23.06.2019 20:00
Mathematics, 23.06.2019 20:00
