Consider the data set of twelve numbers between 1 and 10{1, 1, 2, 2, 2, 3, 4, 4, 5, 6, 8, 10 }.The average is 4The standard deviation would increase the most if a data value ofis changed to a[ Select ]The standard deviation would decrease the most if a data value of[ Select ]is changed to a[ Select ]

Answered: Image /qna-images/answer/1ff87aec-1af9-416d-9e77-ec401ff03726.jpg

Answered: Consider the data set of twelve numbers…

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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IQ scores are measured with a test designed so that the mean is 114 and the standard deviation is 14. Consider the group of IQ scores that are unusual. What are the z scores that separate the unusual IQ scores from those that are usual? What are the IQ scores that separate the unusual IQ scores from those that are usual? (Consider a value to be unusual if its z score is less than - 2 or greater than 2.) What are the z scores that separate the unusual IQ scores from those that are usual? The lower z score boundary is (Simplify your answer.) The higher z score boundary is (Simplify your answer.) What are the IQ scores that separate the unusual IQ scores from those that are usual? The lower bound IQ score is (Simplify your answer.) The higher bound IQ score is (Simplify your answer.)
3,7,3,3,2,3,4,3,4,6,1,3,2,3,5,2,3,1,5,2,6,5,4,10,4 find the value that is 1.5 standard deviations a. above and below the mean min-1 q1-2.5 med-3 q3-5 max-10
A health professional is whether stress level before a routine practice session can be used to predict the mean stress level a major figure skating competition. The health professional selected a random sample of figure skaters and measured the stress level before a routine practice session and before a major competitionEach variable was measured as the change in the interval between heartbeats , or heart rate variability . The health professional wants to estimate the mean change in the stress level before a major competition for each unit increase in the stress level before a routine practice.
The ages (in years) of a random sample of shoppern at a gaming store are shown. Deteremine the range, mean, varlance, and standard deviation of the sample data set 12. 18, 23, 13, 15, 16, 19, 16. 15, 15 The range is (Simpliy your anwer) The mean is (Simplity your answer Round to the nearest benth as needed) The variance is (Simplity your anower. Round to the nearest tenth as needed) The standard deviation is (Simpity your answer. Round to the nearest tendh as needed)
A teacher weighed the backpacks of 4 students. Here are the weights (in kilograms): 5,7,9,11 which of these formulas gives the standard deviation?
The numbers of reqular season wins for 5 football teams in a given season are given below. Determine the range, mean, POPULATION variance, and POPULATION standard deviation of the population data set Do not unload to excel since there are only FIVE values and it may not load correctly. You must upload your work for this question to BLACKBOARD. 15,14,10,9,2 The range is (Simplify your answer.) The population mean is (Simplify your answer. Round to the nearest tenth as needed.) The population variance is (Simplify your answer. Round to the nearest tenth as needed.) The population standard deviation is (Simplify your answer. Round the nearest tenth as needed.)
Statistics Question
Compute the standard deviation for each set. Compute the standard deviation for set {9,9,9,9,9,9,9}
Let a population consist of the values 7 cigarettes, 20 cigarettes, and 21 cigarettes smoked in a day. Show that when samples of size 2 are randomly selected with replacement, the samples have mean absolute deviations that do not center about the value of the mean absolute deviation of the population. What does this indicate about a sample mean absolute deviation being used as an estimator of the mean absolute deviation of a population?
When using 1-Var Stats on a scientific or graphing calculator, the resulting statistical output includes two values for the standard deviation of the data set. These values are labeled as Sxand σx in the statistical output. Why is it necessary to give two values for the standard deviation? How would you choose which one to use as the standard deviation of a data set you are working with? Be sure to explain the difference between these two values as you answer these questions
A right skewed data set has a mean of 35 and a standard deviation of 25. What can be said about the amount of data contained within the interval (-15, 85)? 95% of the data is within this range 68% of the data is within this range Nothing At least 75% of data is within this range

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