Suppose a random variable X; is drawn from a distribution with mean u =600and variance o2900 You draw a large number of samples each of size 36.1. What is the mean of the sample mean? Mean of the sample mean=6002. What is the standard deviation of the sample mean? Standard deviation ofthe sample meanD3. If the sample size is divided by two, what is the mean of the sample mean?300Mean of the sample mean=4. If the sample size is divided by two, what is the variance of the sample18mean? Variance of the sample mean=5. If X; ~ uniform (X; is a uniformly distributed random variable) and thesample size is large, what is the distribution of ? ~ (600,25) Answer 3:You Answered300Correct Answer600Answer 4:You Answered18Correct Answer50Correct Answer900/18Correct Answer450/9Correct Answer150/3Answer 5:You Answered(600,25)Correct AnswerNormalMacBook Pro

Answered: Image /qna-images/answer/4f855289-de95-404e-9395-7d7c49401475.jpg

Answered: Suppose a random variable X; is drawn…

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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203 / 234 100% 1. A random sample of Californians has a mean age of 34.4, but you want to know the mean age of all Californians. It like you want to generalize from a a. population; sample; descriptive statistics b. statistic; parameter; sampling error C. central tendency measure; variability measure; random selection d. sample; population; operational definitions to a and therefore you need to worry about 2. Which one sounds like an example of the experimental method? Looking for a relationship between education and income by doing a survey asking about both education and inc Researching whether aggression and violent media consumption are related by asking kids about their violent me consumption and asking their teachers about their aggression Putting people in three different temperature rooms to see if temperature affects productivity a. b. с. d. None of the above 3. What is the value of E(X2 + 2) for the following scores? Scores: 7, 10, 12, 5, 8, 9, 5, 6 a. 624 b. 526 C. 540 d.…
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2. For a normally distributed random variable, the standard deviation is 3.7. What is the mean if 10% of the distribution is less than 31? 3. Scores of an achievement test show that it follows a normal distribution. Its mean is 78 with a standard deviation of 8. Find the interval wherein the middle 80% of the scores lie.
Mr 8. The results for an IQ quiz taken by 8 students from Ze Class A and Class B are shown below. The fal maximum score for the quiz is 25. we Class A: 4, 6, 6, 7, 8, 10, 11, 12 Class B: 0, 1, 1, 2, 3, 14, 17, 25 (i) Calculate the mean and standard deviation for Class A and Class B. Show your working clearly.
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Suppose that we will randomly select a sample of 64 measurements from a population having a mean equal to 20 and a standard deviation equal to 4. Find the mean and the standard deviation of the sampling distribution of the sample mean . (Round your answer to 1 decimal place.)
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