Answered: Prediction interval for y(58): 179

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Answer is a) 43.9, 10.866 b) 0.408 Please do b)
3 polnts) on the SAT test have a mean Use the range rule of thumb t For a score of 2258 on the SA Find the z score of the score
8 - ))In an exam attended by 400 people, the average of the grades is 45 and the standard deviation is 5.7, showing a normal distribution. 50 samples of n=16 people were taken from this population to the returned lottery. Find the arithmetic mean and standard error of the distribution of the sample meansA) 41 and 1.5 B) 43 and 1,425 C) 45 and 2,425 D) 45 and 1,425 E) 55 and 1,425
Random samples of size 36 are taken from an infinite population whose mean is 80 and standard deviation is 18. The standard error of the sample mean is then: A) 18 B) 15 C) 3 D) 2
Find the probability of a and b)
A and B please
Determine whether the given value is a statistic or a parameter. 1) A sample of 120 employees of a company is selected, and the average age is found to be 37 years. A) Statistic 1) B) Parameter 2) After taking the first exam, 15 of the students dropped the class. A) Statistic 2) B) Parameter 3) After inspecting all of 55,000 kg of meat stored at the Wurst Sausage Company, it was found that 45,000 kg of the meat was spoiled. A) Parameter 3) B) Statistic 4) A health and fitness club surveys 40 randomly selected members and found that the average weight of those questioned is 157 lb. A) Parameter B) Statistic
What is the solution?
Q22 -)) In an exam attended by 600 people, the average of the grades is 60 and the standard deviation is 10.2, showing a normal distribution. From this population, 50 samples of n=36 people were taken to the returned lottery. How many samples are there with an average of less than 65? a) 23 B) 14 C) 19 D) 30 E) 36
It is reported that a survey had a standard error of the mean of 20, and it is assumed that the population standard deviation is 500. Using this information, determine the size of the sample that was used in this survey. a) 300 b) 200 c) 400 O d) 500 () e) None of the answers are correct
a) What is the probability that a randomly selected adult in the U.S. has at least one grandparent who was born outside of the U.S.? b) find the expected number of grandparents who were born outside of the U.S. that a randomly selected adult in this country has. (Find the mean of X) c) find the standard deviation of X. Round to 4 decimal places.
None

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