DA certain article reported the following observations, listed in increasing order, on drill lifetime (number of holes that a drill machines before it breaks) when holes were drilled in a certain brass alloy.12 15 2143 475023 30 37 3868 72 74 76 77 7990 93 95 99 100 10358 60 65 6782 83 86 88104 104 111 118162124 137 140 141 147 158169 185 205 249 263 289 321 389 514USE SALTCompute the sample median, sample mean, 10% trimmed mean, and 25% trimmed mean for the lifetime data. (Round 25% trimmed mean to four decimal places.)sample mediansample mean10% trimmed mean25% trimmed meanCompare these measures.

Let X be the given data and arrange X in increasing order…

Answered: A certain article reported the…

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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The data below represent the prices of different items in a supermarket, construct the frequency table (use 6 classes) and find: 1) Мean 2) Median 3) Mode 4) Variance 5) Standard deviation 165 186 122 172 140 153 208 169 156 114 113 135 131 125 177 136 171 179 152 155 136 127 112 188 116
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4. Use Descriptive Statistic tool on the Data Analysis to find the following: d. Standard Deviation е. Variance f. Range g. Skewness Table: 88 62 63 88 65 85 83 76 72 63 60 46 85 71 67 75 78 87 70 42 63 90 63 60 73 55 62 62 83 79 78 40 51 56 80 90 47 48 54 77 86 55 76 52 76 40 52 72 43 60
Isle Royale, an island in Lake Superior, has provided an important study site of wolves and their prey. Of special interest is the study of the number of moose killed by wolves. In the period from 1958 to 1974, there were 296 moose deaths identified as wolf kills. The age distribution of the kills is as follows. Number Killed by Wolves Age of Moose in Years Calf (0.5 yr) 1-5 114 49 71 11-15 16-20 59 3 (a) For each age group, compute the probability that a moose in that age group is killed by a wolf. (Round your answers to three decimal places.) 0.5 1-5 6-10 11-15 16-20 (b) Consider all ages in a class equal to the class midpoint. Find the expected age of a moose killed by a wolf and the standard deviation of the ages. (Round your answers to two decimal places.)
The data show the population (in thousands) for a recent year of a sample of cities in South Carolina. 13 21 24 26 66 16 23 15 16 30 28 35 90 18 30 26 21 27 103 48 22 48 106 34 33 56 the data value---? Corresponds to the 48th percentile?
A certain article reported the following observations, listed in increasing order, on drill lifetime (number of holes that a drill machines before it breaks) when holes were drilled in a certain brass alloy. 12 15 21 23 30 58 60 65 68 67 82 83 86 88 104 104 111 118 124 137 140 141 147 158 USE SALT sample mean 10% trimmed mean 25% trimmed mean 90 773 15 268 Compare these measures. 72 93 38 43 47 50 162 169 185 205 249 263 289 321 389 514 74 76 77 79 95 99 100 103 Compute the sample median, sample mean, 10% trimmed mean, and 25% trimmed mean for the lifetime data. (Round 25% trimmed mean to four decimal places.) sample median PRACTICE ANOTHER 4
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Consider the following observed weights (in kilograms) of a randomsample of 20 learners and use it to estimate the true value of theaverage weight of learners enrolled in the class. 40 45 46 48 48 50 55 55 56 5858 59 60 60 62 62 64 64 65 66 1. Compute the mean.2. Interpret the result.

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