Refer to the following distribution of commissions:Monthly commissions$600 to under $800Class Frequencies31800 to under 1,0001,000 to under 1,200111,200 to under 1,400221,400 to under 1,600401,600 to under 1,800241,800 to under 2,0002,000 to under 2,2004What is the relative frequency for those salespersons that earn between $1.600 and $1.799?Multiple Choice2%2.4%

Relative frequency= frequency/(total frequency)

Answered: Refer to the following distribution of…

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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Problems 19-21. Use the frequency distribution in Table 1 to answer the questions. Table 1. Frequency Distribution Class Frequency 249-263 10 264-278 19 279-293 22 294-308 17 309-323 12 19. What is the class width? 20. What is the midpoint of the first class? 21. What are the class boundaries for the first class?
Refer to the following distribution of commissions: Monthly Commissions Class Frequencies $600 up to $800 800 up to 1,000 1,000 up to 1,200 1,200 up to 1,400 1,400 up to 1,600 1,600 up to 1,800 1,800 up to 2,000 2,000 up to 2,200 What is the class interval? 3 7 11 22 40 24 9 4
19. The following cumulative frequency and the cumulative relative frequency polygon for the distribution of hourly wages of a sample of certified welders in the Atlanta, Georgia, area is shown in the graph. 40 100 30 75 20 10 25 10 15 20 30 Hourly Wage a. How many welders were studied? b. What is the class interval? c. About how many welders earn less than $10.00 per hour? d. About 75% of the welders make less than what amount? e. Ten of the welders studied made less than what amount? f. What percent of the welders make less than $20.00 per hour? Percent 50 25 LO Frequency
The following frequency distribution summaries the counts of purchases by day of the week for a major domestic retailer.( Day Mon Tue Wed Thu Fri Sat Sun Frequency 2,504 2,880 3,402 3,566 4,576 5,550 5,022 a. Construct the relative frequency distribution. What proportion of the purchases occurred on Wednesday? b. Construct a chart using relative frequencies. Comment on the findings.
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30. The following data give the weekly amounts spent on groceries for a sample of households. df $271 $363 $159 $ 76 $227 $337 $295 $319 $250 279 205 279 266 199 177 162 232 303 192 181 321 309 246 278 50 41 335 116 100 151 240 474 297 170 188 320 429 294 570 342 279 235 434 123 325 a. How many classes would you recommend? b. What class interval would you suggest? c. What would you recommend as the lower limit of the first class? d. Organize the data into a frequency distribution.
1.) Below are prices per gallon of regular gasoline at various Shell and Mobil gas stations. Shell: $3.34 $3.56 $3.90 $4.01 $4.12 $3.36 $3.59 Mobil: $23.24 $3.25 $3.99 $3.99 $4.33 $2.99 $3.23 $2.90 $3.56 $3.12 At a= 0.01, test the claim that these two gas chains have the same average gas prices. a.) Use a hypothesis test b.) Use an appropriate confidence interval 1a.) H0: ______________________ H1: ___________________ t= ________________ P-value __________________ Conclusion: _________________________________ b.) t a/2 = ____________________ CI: ____________________________ Conclusion: ___________________________________________
The following frequency distribution gives the credit card debt of bank customers. Debt Frequency $0- $999 100 $1000 $1999 300 $2000 - $2999 1200 $3000 - $3999 1100 $4000 $4999 600 $5000 - $5999 200 Give the class boundaries. $999 O $1999.50, $2999.50, $3999.50, $4999.50 $1999.05, $2999.05, $3999.05, $4999.05 O $1000 « Previous

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