Example 9.27 The average daily sales of 500 branch officials was Rs 1,50,000 and the standard devia-tion was Rs 15,000. Assuming the distribution to be normal, indicate how many branches have salesbetween:(i) Rs 1,20,000 and Rs 1,45,000(ii) Rs 1,40,000 and Rs 1,65,000(iii) More than Rs 1,65,000

Answered: Image /qna-images/answer/da1a9886-fbb8-4511-b040-50b1a96368e7.jpg

Answered: Example 9.27 The average daily sales 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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The following table gives the cost of living index for 1998 with 1986 as base for different commodity groups: Food, Clothing, Fuel and Light, Rent and Miscellaneous as 440, 500, 350, 400 and 250 respectively with their weights in order in the ratio 15: 1:2:3:4. Obtain, the overall cost of living index number, suppose a person was earning $ 4,000 in 1986. What should be his salary in 1998 to maintain the standard of living as in 1986?
Preferred Investment Instrument Survey A survey of a random sample of 450 workers asked them to identify their preferred investment instrument for retirement saving products. a. Company pension fund b. Retirement annuity С. Unit trust linked funds d. Properties е. National lottery The survey found that 58% selected a company pension fund, 22% chose the retirement annuity, 10% chose unit trust linked funds, while 8% believed properties were the best option and the remainder selected the national lottery as the way to save for retirement. The aim of the study is to describe the opinions of all workers' views in South Africa. The survey also collected the saving values of the 450 workers and complied the following numeric frequency distribution table: Saving Values Frequency R 500 to less than R1 000 120 R1 000 to less than R1 500 98 R1 500 to less than R 2 000 180 R2 000 to less than R2 500 32 R2 500 to less than R3 000 20 Source: Lai, K. (2020)
Assuming that workers' salaries in your company are uniformly distributed between $10,000 and $50,000 per year. Find the amount of money that 35% of the workers make more than that value?
The prices of agricultural commodities for 1946-47 and for the inonth of Dece:mber 1950 are given below along with the value of the output of hese commodities in 1946-47: Value of outptl in million (Rs.) Prices ELIII Commodities Unit 1946-47 (Rs.) Dec. 1950 (Rs.) (1946-47) 13.75 9-70 8364 Rice Wheat Jowar maund таund 13-75 9.70 2207 6:03 8.00 876 maund 466 00 433.00 701 Cotton (raw) Tea Ibs. 1:25 1:75 534 Ibs. Calculate the weighted index mumber of prices of these commodities for December 1950 taking 1946-47 as base.
2. A customer at a specialty milk tea shop observed the amount of time, in minutes, that each of 20 customers spent waiting to receive an order. The results are recorded in the table below: Time (min) to receive order 3.2 4.0 3.8 2.4 4.7 5.1 4.6 3.5 3.5 6.2 3.5 4.9 4.5 5.0 2.8 3.5 2.2 3.9 5.3 Find the mean and sample standard deviation of these data. Interpret the results. 62 29 2.9
Q5. (i) Prices of chocolates each (OMR.): 0.10, 0.19, 0.11, 0.19, 0.17, 0.12, 0.12, 0.12, 0.10, 0.11, 0.13, 0.10, 0.09, 0.11, 0.15,0.13, 0.10, 0.18, 0.09, 0.07, 0.08, 0.06, 0.08, 0.05, 0.07, 0.08, 0.08, 0.07, 0.09, 0.06,0.07, 0.08, 0.07, 0.07, 0.07, 0.08, 0.06, 0.07, 0.06Using 6 class intervals with the lowest starting at 0.05.Set up frequency distributionConstruct frequency histogram (ii) How many ways of four-digit odd numbers can be formed from the set of digits A= {5,6,2,7,4,9,3} if the repetition of digit is not allowed
Mr. X was getting Rs. 2,400 in the base period and Rs. 4,300 in the current year, State how much he le 10-46. An enquiry into the budgets of the middle class families of a certain city revealed that on h average the percentage expenses on the different groups were: Rent 15, Miscellaneous 20. Fuel and Light 8, index mumbers for the current vear as compared with a fixead base period were 410, 150, 343, 248 and 285. Calculate the Cost of Living Index Number for the current year. Food 45, Clothing 12, respectively The group ought to have received as extra allowance to maintain his former standard of living. 1.
1. The histogram below summarizes budgets for about 5000 movies. You may assume that values are evenly distributed between the endpoints of each interval. per milion dollars 51 1 0.5 0 (2.18) (0.876) 13 (0.42) (0.228) 50 75 100 (0.067) 200 Movie budgets (Millions of dollars) (0.0035) (a) What percent of movies had a budget between 50 and 100 million dollars? _% (b) Which describes more of the movies (circle one)? budget from $75M-$100M OR budget from $100M-$200M (c) Which is larger (circle one)? median budget OR average budget (d) Calculate the median budget for this dataset. $. million
Please answer number 8. Make sure to show work; thx!!
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: ___________________________________________
56. From the following data calculate the cost of living index number by the family budget mehtod. Also obtain the expenditure of the person in the year 2013 if his ex- penditure is 2010 is Rs. 600. Price 2010 Price 2013 Weight Group Food Clothing Rent 12 60 16 32 30 60 30 10 10 20 15 Education Misc. 15 10

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