I am having trouble figuring out question d and e. 1. (30) [This combines problems 7.17 and 7.20 in the textbook.] Eachyear, Forbes magazine publishes a list of the richest people in theUnited States. On September 16, 2013, the six richest Americans andtheir wealth in billions of dollars are shown below. (Treat these six asthe population for the problem.)Wealth (SB)PersonBill Gates (G)Warren Buffett (B)Larry Ellison (E)Charles Koch (C)David Koch (D)Christy Walton (W)725941363635a. Calculate the mean wealth of these people.b. List all the possible samples of size 2 and their means.c. Draw a dotplot for the sampling distribution of the sample means youfound in part b.d. For one random sample of size 2, what is the probability that thesample mean will equal the population mean?e. For a random sample of size 2, what is the probability that the meanwealth of the two people in the sample will be within 3 (billiondollars) of the population mean?Now repeat each of these steps for samples of size 5.Interpret your findings.

The population is given by, 74,57,43,38,38,31 Therefore the population mean is given by, µ =…

Answered: - (30) [This combines problems 7.17 and…

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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I need help with just part c. Someone on here already answered it for me but I'm really confused as there are steps missing and I'm not sure what to put in the calculator. " The first quartile separates the lowest 25% of the observations from the higher 75% of the observations. The first quartile is denoted by Q1. The second quartile separates the lower 50% of the observations from the higher 50% of the observations. The second quartile is denoted by Q2.The second quartile is same as median. The third quartile separates the lowest 75% of the observations from the higher 25% of the observations. The third quartile is denoted by Q3. The third quartile can obtained as follows...." Third Quartile is 1 somehow, and I don't understand how it is.
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Please select between the two options and answer question 6
need answer and all the work
Use the information below to answer questions 27 and 28. Consider again the NCHS-reported mean total cholesterol level in 2002 for all adults is 2003. Suppose a new drug is proposed to lower total cholesterol. A study is designed to evaluate the ecacy of the drug in lowering cholesterol. Fifteen patients are enrolled in the study and asked to take the new drug for 6 weeks. At the end of 6 weeks, each patient’s total cholesterol level is measured and the sample statistics are as follows:n = 15, x̄ = 195.9, and s = 28.7. Is there statistical evidence of a reduction in mean total cholesterol in patients after using the new drug for 6 weeks? 27. The test statistic to be used is ........................................... and the hypotheses to test are?(i). ........................................................................... (ii)................................................................................. 28. Given that the table or the critical value is -2.145, do we accept…
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