109077
23.10.2021 •
Mathematics
Voltage sags and swells. Refer to the Electrical Engineering (Vol. 95, 2013) study of the power quality (sags and swells) of a transformer, Exercise 2.127 (p. 110). For transformers built for heavy industry, the distribution of the number of sags per week has a mean of 353 with a standard deviation of 30. Of interest is x, the sample mean number of sags per week for a random sample of 45 transformers. a. Find E1x2 and interpret its value. b. Find Var1x2. c. Describe the shape of the sampling distribution of x. d. How likely is it to observe a sample mean number of sags per week that exceeds 400
Solved
Show answers
More tips
- L Leisure and Entertainment How to Choose a Program for Cutting Music?...
- A Auto and Moto How to choose the right drive for your BMW...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- H Health and Medicine How to Treat Whooping Cough in Children?...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
Answers on questions: Mathematics
- M Mathematics What is 7.8 * 7.8 * 7.8 * 7.8 * 7.8 as a power...
- M Mathematics Please help me out , thank you...
- M Mathematics 8x-2=-9+7x Can someone help me?...
- M Mathematics There are 89 students in the sixth grade. Thirty-two percent of the sixth grade students live in Earth . Thirty-six percent of the sixth grade students live in Mars. The remaining...
- H History What angered Martin Luther about the Catholic Church and how did he respond?...
- M Mathematics 5) A 3-year-old dog is often considered to be 21 in human years. Assume that the age of a dog varies directly with the age of a human. What is the human-year age of a dog that is...
- C Computers and Technology I have a question about this technology homework thing about levers: (I know the result is 264.1016... but I don t know how to get there and I would really apreciate it if someone...
Ответ:
2/3 is greater than 3/5
Step-by-step explanation: