Mathematics
Mathematics, 17.12.2019 02:31, royal6032

Voltage sags and swells. refer to the electrical engineering (vol. 95, 2013) study of transformer voltage sags and swells, exercise 2.76 (p. 86). recall that for a sample of 103 transformers built for heavy industry, the mean number of sags per week was 353 and the mean number of swells per week was 184.
assume the standard deviation of the sag distribution is 30 sags per week and the standard deviation of the swell distribution is 25 swells per week. suppose one of the transformers is randomly selected and found to have 400 sags and 100 swells in a week. a. find the z-score for the number of sags for this transformer. interpret this value. b. find the z-score for the number of swells for this transformer. interpret this value.

answer
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 17:30, n987
Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut
Answers: 1
image
Mathematics, 21.06.2019 20:00, madisonrosamond99
Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.
Answers: 1
image
Mathematics, 22.06.2019 03:30, danielleepham
Whats is the value of the variables ?
Answers: 3
image
Mathematics, 22.06.2019 03:50, kellz37
What is the 8th term of the geometric sequence with this explicit formula? an= )(n-1)
Answers: 2
Do you know the correct answer?
Voltage sags and swells. refer to the electrical engineering (vol. 95, 2013) study of transformer vo...

Questions in other subjects: