Solution:
a. Mean yearly salary = sum of all salaries/number of residents
= (97+48+69+85+92+48+79+74)/8 = 74 = $74,000
b. Arranging the data in ascending order: 48,48,69,74,79,85,92,97
Median will be average of 4th and 5th number. Hence median = (74+79)/2 = 76.5 = $76500
c. Mode is the number which occurs the most. Hence mode = 48 = $48000
d.For calculating 20th percentile, multiply 0.20 by number of observation i.e 8 which comes 1.6. Rounding up to nearest whole number we get 2. The 20th percentile will be the second number in the data arranged in the ascending order. Hence, the 20th percentile is 48 or $48000.
e. Similarly for calculating 40th percentile, 0.40*8 = 3.2. Thus 3rd number will be 40th percentile which is 69 or $69000.
f. Similarly for calculating 60th percentile, 0.60*8 = 4.8. Thus 5th number will be 60th percentile which is 79 or $79000.
g. Similarly for calculating 80th percentile, 0.80*8 = 6.4. Thus 6th number will be 80th percentile which is 85 or $85000.
5. The following data show the yearly salaries of a random sample of Worcester residents Resident...
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please peovide coding in R:
with a data of 13 variables and 200 observations
Using the variable CLASS, test at 5% significance level to
test the claim that the
proportions of Freshmen, Sophomores, Juniors, and Seniors are
the same.
2. Repeat part (a) for the variable COLLEGE.
RLM ENGLISH MATH COMP 21 16 25 839SSESSOR 8 F 17 F N H ABCD 1 SEX HSP GPA AGE CREDITS CLASS COLLEGE MAJOR RESIDENCY TYPE 2 Transfer Blochm Resident F 75 2.39...
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I literally have no idea what I’m doing. Help!!! Please show
work!!
Write an essay using Word and post it as an attachment to the discussion. Cover the following points. Choose a data set from Stat Disk using one of the following files from 13th Edition Elementary Statistics: Oscar Winner Freshman 15 Word Count Garbage Weights Passive and Active Smoke If the file contains more than one variable, choose a quantitative variable. Create a histogram using your chosen variable and...
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