TOPIC: MEASURES OF POSITION AND CENTRAL TENDENCY A. LET'S PRACTICE: Solve for the mean, median, and mode. 'MeanFrequency | Class Mark(X)37ClassfXInterval(f)35 - 39414830 - 3473222425 - 29122732420 – 2415 - 1910222205178510 - 141224i = 5N = 40Efx =1025MedianМodeClassFrequency(f)Lower

Answered: A. LET'S PRACTICE: Solve for the mean,…

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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Rainmakers? In an experiment to determine whetherseeding clouds with silver iodide increases rainfall,researchers randomly assigned clouds to be seeded ornot. The table summarizes the resulting rainfall (inacre-feet). Create a 95% confidence interval for theaverage amount of additional rain created by seedingclouds. Explain what your interval means. Unseeded Clouds Seeded CloudsCount 26 26Mean 164.588 441.985Median 44.200 221.600SD 278.426 650.787IntQRange 138.600 337.60025 %ile 24.400 92.40075 %ile 163 430
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Part D and E
For the accompanying data set, (a) draw a scatter diagram of the data, (b) by hand, compute the correlation coefficient, and (c) determine whether there is a linear relation between x and y. Click here to view the data set. Click here to view the critical values table. Critical values for the correlation coefficient Critical Values for Correlation Coefficient Data set 3 0.997 4 0.950 2 4 6. 6. 7 0.878 0.811 y 4 8. 12 14 19 7 0.754 8 0.707 0.666 10 0.632 11 0.602 12 0.576 13 0.553 14 0.532 15 0.514 16 0.497 17 0.482 18 0.468 19 0.456 20 0.444 21 0.433 22 0.423 23 0.413 24 0.404 25 0.396 26 0.388 27 0.381 28 0.374 29 0.367 30 0.361 Print Done n
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A. LET'S PRACTICE: Solve for the mean, median, and mode. Мean Frequency | Class Mark (X) 37 Class fX Interval (f) 35 - 39 4 148 30 - 34 7 32 224 25 - 29 27 324 20 - 24 22 220 15 - 19 10 14 i = 5 17 85 12 24 N = 40 Efx =1025 Median Mode Class Frequency (f) Lower