77. During a period of decline in stock market prices a stock sold at Rs. 50 pershare on one day Rs. 40 on the next day and Rs. 25 on the third.(1) If an investor bought 100, 120 and 180 shares on the respective three days, findthe average price paid per share.(ti) If the investor bought Rs. 1000 worth of shares on each of thethree days, find the average price paid per share.IB.A. (H) Econ. Delhi Univ.. 2007: B.Com...

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Answered: 77. During a period of decline in stock…

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 accompanying data represent the annual rates of return of two companies' stock for the past 12 years. Complete parts (a) through (k). O A. OB. 0.50- 0.50- 0.00- 0.00- -0.50- -0.50- -0.3 RR of Company 2 0.0 0.3 -0.3 0.0 0.3 RR of Company 1 OC. 0.30- 0.50- 0.00- 0.00- -0.30- -0.50- o.0 0'5 0.0 0.3 -0.5 RR of Company 2 0.5 -0.3 RR of Company 1 (b) Determine the correlation coefficient between rate of return of Company 1 and Company 2. The correlation coefficient is 0.966. (Round to three decimal places as needed.) (c) Based on the scatter diagram and correlation coefficient, is there a linear relation between rate of return of Company 1 and Company 2? Yes No (d) Find the least-squares regression line treating the rate of return of Company 1 as the explanatory variable. y=x+O (Round to four decimal places as needed.) RR of Company 1 RR of Company 1 RR of Company 2 RR of Company 2
5. Use the formula for a (1+r)" – 1 geometric sum to show that A, = dollars.
1. Suppose you run a library and the cost of a particular journal you carry has increased over a ten year period from $14 to $35 a) What is the percentage increase over this time period? b) Is it correct to say that since this was over a ten year period that the cost increased 15% per year? If this is not correct what would the cost of the journal be now if it DID increase 15% per year over this time period? What would the actual percentage increase be in this case
James has an investment worth $175,609.50. The investment will make a special payment of X to James in 1 month from today and the investment also will make regular, fixed monthly payments of $1,440.00 to James forever. The expected return for the investment is 1.23 percent per month and the first regular, fixed monthly payment of $1,440.00 will be made to James in one month from today. What is X, the amount of the special payment that will be made to James in 1 month? An amount less than $58,600.00 or an anmount greater than $179,600.00 An amount equal to or greater than $58,600.00 but less than $88,950.00 An amount equal to or greater than $88,950.00 but less than $146,400.00 An amount equal to or greater than $146,400.00 but less than $176,000.00 O An amount equal to or greater than $176,000.00 but less than $179,600.00 Com SHEMA
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You are the accountant for a company that owns a chain of 18 fast food restaurants in a state which adjusts the minimum wage for inflation. Each restaurant employs 45 workers, each averaging 20 hours per week at the current federal minimum wage, $7.25 per hour.(a)How many hours at minimum wage are paid out each week by the company?hr(b)At the current rate of $7.25 per hour, what is the amount (in $) of the weekly "minimum wage" portion of the restaurant's payroll?$ (c)If the inflation rate this year is 0.7%, calculate the "adjusted" minimum wage rate (in $ per hour) to be paid next year. (Round your answer to two decimal places.)$ per hour(d)How much in "additional wages" will the company have to pay out next year at the adjusted rate (in $)? (Round your answer to the nearest dollar.)$ (e)Suggest some ways that the restaurant chain or other small businesses can offset the increase in payroll and subsequent decrease in profit as a result of the minimum wage hike.
A manufacturer of phone batteries determines that the average length of talk time for one of its batteries is 470 minutes. Suppose that the standard deviation is known to be 32 minutes and that the data are approximately bell-shaped. Estimate the percentage of batteries whose talk time is between 406 minutes and 534 minutes. Estimate the percentage of batteries whose talk time is less than 438 minutes. Estimate the percentage of batteries whose talk time is more than 534 minutes. answer in excel
D Use the compound interest to determine the final Value of the given amonnts i) $ 850 "at sl. compounded daily for 18 years veedad The final Value is $ a Grond to nearest cent'as in) $ boo at 6%. Componnded continously years. for 10 JThe final' valne is 4( heded (ronnd to the reaest cent as
3. A sum of money was invested at a constant interest rate compounded annually. After five years, the value of the investment is $1590.71. After fourteen years, the value of the investment is $2510.34. a) How much money was invested originally? b) Calculate the annual interest rate.
Mr. Del Valle is 54 years old and plans to retire in 8 years. He wants to live at least 20 years after he retires. He has $125,000 in savings and expects to earn 7% annual interest. He expects to have an income of $45,000, the same income he currently receives from his job. Del Valle will begin receiving his benefit after 8 years on a bi-weekly basis (24 payments per year) after he retires. Annual inflation is expected to reach 5%. Determine how much Mr. Del Valle must save over the next 8 years to meet the retirement goal.
Suppose you start saving for retirement when you are 35years old. You invest $5,000the first year and increase this amount by 2%each year to match inflation. How much money will you have saved after 20years if the interest rate earned on the retirement account is 7% per year? a) you will have saved $ ( Round to nearest dollar) b) on the other hand you will have saved $ if the rate of increase of the investment drop was 7% instead of the original 2%

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