4) Finally, you wish to determine if the mean monthly sales of the shirt in the superstores that comprise part of the chain in four regions of the country that you have defined differ from each other. Random samples of the sales of the item in stores chosen from each region are selected. The sample data comprising these sales figures is shown in appendix four below. At the 1% level of significance, are there any differences in the mean monthly sales of the item in the populations of superstores in the four regions of the country? If you do observe that there are differences in the mean monthly sales of the shirt, perform the necessary additional test to ascertain which pairs of stores exhibit different mean sales at the 1% level of significance. Perform the appropriate test to show whether the desired property of homogeneity of variances exists for this study, also at the 1% level of significance

Region

   Store                 One                Two                Three             Four               

      1                      459                 282                 545                 490

      2                      490                 355                 588                 402

      3                      421                 348                 496                 397

      4                      500                 389                 439                 440

      5                      489                 276                 476                 501

      6                      540                 430                 510                 375

      7                      555                 387                 519                 398

            8                      421                 411                 483                 490

            9                      489                 443                 311                 355

         10                     551                 477                 390                 439

         11                     490                 398                 430                 503

         12                     401                 375                 275                 622

Q_{.01,4, 44} = 4.68                                       

4) Finally, you wish to determine if the mean monthly sales of the shirt in the superstores that comprise part of the chain in four regions of the country that you have defined differ from each other. Random samples of the sales of the item in stores chosen from each region are selected. The sample data comprising these sales figures is shown in appendix four below. At the 1% level of significance, are there any differences in the mean monthly sales of the item in the populations of superstores in the four regions of the country? If you do observe that there are differences in the mean monthly sales of the shirt, perform the necessary additional test to ascertain which pairs of stores exhibit different mean sales at the 1% level of significance. Perform the appropriate test to show whether the desired property of homogeneity of variances exists for this study, also at the 1% level of significance

Region

   Store                 One                Two                Three             Four               

      1                      459                 282                 545                 490

      2                      490                 355                 588                 402

      3                      421                 348                 496                 397

      4                      500                 389                 439                 440

      5                      489                 276                 476                 501

      6                      540                 430                 510                 375

      7                      555                 387                 519                 398

            8                      421                 411                 483                 490

            9                      489                 443                 311                 355

         10                     551                 477                 390                 439

         11                     490                 398                 430                 503

         12                     401                 375                 275                 622

Q_{.01,4, 44} = 4.68                                       

Aydin Ltd uses perpetual inventory in connection with Average costing. The company began the year with zero inventory balance. They had the following transactions during the year: 1 July Purchased 50 units at $3.00 per unit

5 July Sold 10 units at a price of $10.00 per unit

7 July Purchased 130 units at $4.00 per unit

9 July Sold 60 units at a price of $ 11.00 per unit

15 July Purchased 60 units at $5.00 per unit

30 July Sold 50 units at a price of $12.00 per unit

At the end of the year, they counted the inventory and found 125 units remaining. Is this correct? If incorrect, what is the correct number of units remaining in inventory? How much was the Cost of sales for the year? (Round to the nearest whole dollar)

4 Q5 Total
Marks
8 Marks
8 Marks
8 Marks
8 Marks
8 Marks 40 Marks
              Q1: A cantilever beam having span ‘L’ m was subjected to a uniformly distributed load of magnitude 8 kN/m for a distance of ‘0.6 L’ from the free end and two concentrated loads one of magnitude 15 kN at a distance ‘0.25 L’ m from the free end while the other of magnitude ‘22’ kN at a distance ‘0.6 L’ m from the free end respectively. It was observed that the maximum bending moment acting on the beam is equal to (-369 kNm). Suggest a suitable span for the beam based on the loading condition. How it will change the reaction at the fixed support? What happens to the shear force and bending moment values at the fixed support, free end and at the center of the beam? By plotting bending moment and shear force diagram for the beam briefly conclude the relationship between the values for shear force and bending moment.

Type into a character array, or copy from an online source, Lincoln’s Gettysburg Address. Write a C Language Program that will search for the following words and then print out the entire sentence from Lincoln’s Gettysburg Address for every occurrence of each of the specified words:

            civil                  nation              nobly               people             place               proper

            Your program should search through the Gettysburg Address and find the answers, not pre-load them to print out once a particular word is sought.

This is my current code that I came up with:

#include <stdio.h>
#include <string.h>

int main(void) {
   char address[] = "Fourscore and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battlefield of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. But, in a larger sense, we cannot dedicate-we cannot consecrate-we cannot hallow-this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us-that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion-that we here highly resolve that these dead shall not have died in vain-that this nation, under God, shall have a new birth of freedom-and that government of the people, by the people, for the people shall not perish from the earth.";
   char line[50], word1 = "civil", word2 = "nation", word3 = "nobly", word4 = "people", word5 = "place", word6 = "proper";
   int loc, i, j, k=0;

   puts("Searching for the sentences that contain the words: civil, nation, nobly, people, place, proper\n");

   loc = strstr(address, word1); //searching for 'civil' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word2); //searching for 'nation' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word3); //searching for 'nobly' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word4); //searching for 'people' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word5); //searching for 'place' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   loc = strstr(address, word6); //searching for 'proper' in the string
   if (loc == NULL)
       puts("No match found.");
   else
       printf("%s", line);

   return 0;
}

What am I doing wrong here?

PHSTAT ONLY!!!

Instructions: Show your complete solution. Simply giving the final answer without showing your calculations will NOT merit any points. If you’re using PhStat or Excel calculations, upload the excel file. You can also cut and paste the Excel work output on a word file, and upload it here.

Given a normal distribution with µ = 47 and σ = 6, what is the probability that:

1. X < 39 or X > 44
2. X is between 37 and 46
3. 7% of the values are less than what X value.
4. Between what two X values (symmetrically distributed around the mean) are 70% of the values?

Use the following information for all questions.

The U.S. Census Bureau reported the following unemployment rates (y) associated with the given number of years of education (x).

5. Which of the following is the equation of the regression line? Round the slope and the y=intercept to two decimal places.

6.a. Interpret the slope of the regression line in a sentence. Be sure to interpret in context for the problem.

6.b. Interpret the y-intercept of the regression line in a sentence or explain why the value is not practical. Be sure to refer to the context of the problem.

7. Predict the unemployment rate for 11 years of education. Round the final answer to one decimal place and give the final answer in a full sentence.

8. a. Find the predicted unemployment rate for 8 years of education. Give the response in a full sentence.

8.b. Find the residual for 8 years of education.

9. Was the predicted value an overestimate or an underestimate or was it exactly equal to the observed value?

a. Underestimate

b. Exactly Equal

c. Overestimate

10. Find the 95% prediction interval for 8 years of education. Round the endpoints to two decimal places.

a. (8.10, 22.50)

b. (11.7,18.9)

c. (9.07, 23.47)

d. (12.67, 19.87)

11. Find the coefficient of determination, r², rounded to one decimal place in percentage form, and interpret the value in context of the problem.

Introduce hydraulic loss   into the Bernoulli equation to account for the energy lost by the water flowing through the small horizontal pipe. Derive the expression for the hydraulic loss by considering two points at the inlet and outlet of the small horizontal pipe.

During the process of digital sampling, data can be lost due to aliasing. Analyse this problem and provide at least two possible solutions. Also, determine the rate at which a signal should be sampled, if the highest frequency is 60MHz.

1.      Business is booming at the local McDonald's restaurant. It is contemplating adding a new grill and french-fry machine, but the day supervisor suggests simply hiring more workers. How should the manager decide which alternative to pursue?

a.      Compare the cost of the new grill and french-fry machine to the cost of additional workers. (which one is cheaper?)

b.     Compare the additional output of the new grill and french-fry machine to the additional output of more workers. (which one produces more?)

c.      Compare the additional output per dollar spent on the new grill and french-fry machine to the additional output per dollar spent on additional workers.

d.     None of the above

2.      Suppose a firm finds that the marginal product of capital is 60 and the marginal product of labor is 20. If the price of capital is $6 and the price of labor is $2.50. Should this firm adjust its mix of capital and labor? How? (i.e., more/less capital? more/less labor?)

3.      A firm minimizes its costs by using inputs such that the marginal product of labor is 10 and the marginal product of capital is 20. The price of capital is $10 per unit. What must the price of labor be?

4.      Suppose that the price of labor is $10 per unit and the price of capital is $20 per unit.

a.      Assuming the firm is minimizing its cost, if the marginal product of labor is 50, what must the marginal product of capital be?

b.     Suppose the price of capital increases to $25 per unit, while the price of labor stays the same. To minimize the cost of producing the same level of output, would the firm become more capital-intensive (i.e., more capital/less labor) or more labor-intensive?

5.      

a.      Suppose that the average age of students in your economics class is 23.7 years. If a new 19-year-old student enrolls in the class, will the average age in the class rise or fall?

b.     Suppose that the average output per worker is 23.7 units. If a new worker produces 19 units,

                                                             i.     is the marginal product of labor higher or lower than the average product?

                                                           ii.     Will the average output per worker (average product) rise or fall when you hire the new worker?

6.      

a.      Barry Bond's career home run average in his first 15 years in major league baseball (through 1997) was 33 home runs per season. In 2001, he hit 73 home runs. What effect did his performance in 2001 have on his career home run average?

b.     Suppose that you have 15 workers, and the average output per worker (average product) is 33. The 16^th worker will produce 73 more units. Will the average product rise or fall if you hire the 16^th worker?