1. A population is normally distributed with a mean of-30 (negative 30) and a standard deviation of4. (Show work)a. What is the mean of the sampling distribution (HM) for this population?b. If a sample of 16 participants is selected from the population, what is the standard errorof the mean?

1. The mean is -30, and standard deviation is 4.

Answered: 1. A population is normally distributed…

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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3. Normal Distribution and Z - Scores Assume a normal distribution for a population of scores for a standardized exam. The average exam score is 70, and the standard deviation is 5. Jeff's exam score is 63. a) What percentage of the population has an exam score greater than Jeff's? b) What percentage of the population has an exam score greater than Jeff's but less than the score of 74? c) If 10,000 people were given the exam, how many of them have an exam score less than Jeff's?
12. A score that is 6 points below the mean corresponds to a z-score of z -2.00. What is the population %3D standard deviation? sponds
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PLEASE ANSWER ALL THE PARTS OF THE QUESTION (THIS IS NOT A GRADED ASSIGNMENT) 1. Suppose the distribution of cholesterol levels in a population of men is approximately normally distributed with a mean of 200 mg/dL and a standard deviation of 32 mg/dL. A. What is the standard deviation of the sampling distribution of ˉxˉ for n=25? Write your answer as a decimal value rounded to four decimal places. B. What condition allows us to say that the value in part (A) is approximately true? C. What is the shape of the sampling distribution of ˉxˉ for n=25? D. What condition allows us to answer as we did in part (C)? E. You take a random sample of 25 males from this population and find the average level of the sample to be 188 mg/dL. How unusual is this sample? Show your work (conditions, mechanics, and context)
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1. A population is normally distributed with a mean of -30 (negative 30) and a standard deviation of 4. (Show work) a. What is the mean of the sampling distribution (UM) for this population? b. If a sample of 16 participants is selected from the population, what is the standard error of the mean?