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-Adding measures of precision to the results found in the descriptive analysis.
-Infer about the population by estimating population parameters.
-Generalization of the results obtained from the sample.
-Tests the hypotheses.
jim items answered the question on March 1, 2019 at 18:10
- Discuss the steps followed when carrying out quantitative data analysis.(Solved)
Discuss the steps followed when carrying out quantitative data analysis.
Date posted: March 1, 2019. Answers (1)
- A project has 11 activities with the activities preceding constraints, time estimates and work team requirements as shown(Solved)
A project has 11 activities with the activities preceding constraints, time estimates and work team requirements as shown
Required:
i) Prepare a network and indicate critical path.
ii) Prepare a time chart and work team requirement.
iii) Can the work team resource be levelled further? Why?
Date posted: February 20, 2019. Answers (1)
- In relation to project analysis define the terms:
i) Latest start time.
ii) Earliest start time.
iii) Resource leveling.(Solved)
In relation to project analysis define the terms:
i) Latest start time.
ii) Earliest start time.
iii) Resource leveling.
Date posted: February 20, 2019. Answers (1)
- A milk processing plant Oldonyo Kesses Ltd in Rift-Valley desires to determine how many kilograms of butter to produce per day to meet demand. Past...(Solved)
A milk processing plant Oldonyo Kesses Ltd in Rift-Valley desires to determine how many kilograms of butter to produce per day to meet demand. Past records indicate the following patterns of demand:
Stock levels are restricted to the range 15 – 45 kilograms (in multiples of 5 kg.) and butter left is disposed by giving the employees working in the factory at the end of the day. Cost of production is Sh.44 and selling price is Sh.50 per Kg.
Required:
i) Construct a payoff table.
ii) Determine the production alternative that maximises expected profit
Date posted: February 20, 2019. Answers (1)
- The marketing department of EAA Ltd developed a sales forecasting function for its washing powder and those of competitor Hankol Ltd. EAA Ltd has 3...(Solved)
The marketing department of EAA Ltd developed a sales forecasting function for its washing powder and those of competitor Hankol Ltd. EAA Ltd has 3 strategies and Hankol Ltd has 4 strategies. The increase and decrease in quarterly sales revenue for the different combinations of strategies of EAA Ltd and Hankol Ltd are as shown in the payoff matrix:
Required:
Using graphical or otherwise determine the strategy available for EAA to pursue
Date posted: February 20, 2019. Answers (1)
- In a linear programming problem the objective function and constraints were determined to be as follows(Solved)
In a linear programming problem the objective function and constraints were determined to be as follows
Required:
i) By simplex method find the final table.
ii) Give the optimal solution and the value of the corresponding objective function
iii) For the variable x2, give an interval for their objective function coefficient such that the present basic solution remains optimal
Date posted: February 20, 2019. Answers (1)
- Differentiate linear programming from assignment and transportation problems(Solved)
Differentiate linear programming from assignment and transportation problems
Date posted: February 20, 2019. Answers (1)
- What is sensitivity analysis on the objective function coefficients? Differentiate this with sensitivity analysis on the right hand side (RHS) constants(Solved)
What is sensitivity analysis on the objective function coefficients? Differentiate this with sensitivity analysis on the right hand side (RHS) constants
Date posted: February 20, 2019. Answers (1)
- A land resale firm, Shamba Nyingi Limited, sells land around the environs of Nairobi. The size and price data for a given year are as...(Solved)
A land resale firm, Shamba Nyingi Limited, sells land around the environs of Nairobi. The size and price data for a given year are as shown.
Required:
i) Determine the linear-regression equation of price on size.
ii) Describe the relationship between size and price.
iii) What do the equation coefficients represent?
iv) What is the estimated standard error of the regression equation?
v) Determine the prize when the size of land is 2,150 square meters.
Date posted: February 20, 2019. Answers (1)
- What is the estimated standard error of a regression equation?(Solved)
What is the estimated standard error of a regression equation?
Date posted: February 20, 2019. Answers (1)
- In testing records generated by two sub departments in a large firm, the following were the incorrect records obtained.(Solved)
In testing records generated by two sub departments in a large firm, the following were the incorrect records obtained.
Is the difference in number of incorrect records significant?
Date posted: February 20, 2019. Answers (1)
- A researcher finds that 65% of a random sample of 100 technicians can be classified as highly dissatisfied with
their job. With the scale used to...(Solved)
A researcher finds that 65% of a random sample of 100 technicians can be classified as highly dissatisfied with their job. With the scale used to measure job satisfaction, the percentage of highly dissatisfied people in all types of occupation has averaged 45%. Can the researcher conclude that a larger proportion of technicians is dissatisfied than is true for all occupations. (Use 5%level of significance)
Date posted: February 20, 2019. Answers (1)
- A sample should reduce as much as possible elements of bias since they deprive statistical result of its representativeness. Define a bias and describe at...(Solved)
A sample should reduce as much as possible elements of bias since they deprive statistical result of its representativeness. Define a bias and describe at least four examples of ways that bias is introduced in a sample.
Date posted: February 20, 2019. Answers (1)
- A performance test was done before and after training on 12 persons appointed in clerical positions in a cement factory warehouse in Athi River. Marks...(Solved)
A performance test was done before and after training on 12 persons appointed in clerical positions in a cement factory warehouse in Athi River. Marks were awarded on a 10-point scale as follows
Did the training improve performance?
Date posted: February 20, 2019. Answers (1)
- Write short notes on the following:
i) Uniform distribution
ii) Poisson distribution
iii) Normal distribution
iv) Beta distribution
v) t-distribution(Solved)
Write short notes on the following:
i) Uniform distribution
ii) Poisson distribution
iii) Normal distribution
iv) Beta distribution
v) t-distribution
Date posted: February 20, 2019. Answers (1)
- A major bank BKR Ltd calculates the credit ratings of its credit card customers on a monthly basis. The ratings are poor, good and excellent...(Solved)
A major bank BKR Ltd calculates the credit ratings of its credit card customers on a monthly basis. The ratings are poor, good and excellent depending on the payment history. The following matrix shows how the customers change from one category to the other in one month.
Required:
i) Interpret the elements 0.84, 0.2, 0.18 and 0.16. (4 marks)
ii) Given that in August 2003, from customer base of 100,000 the accountswere classified as
Poor 30,000
Good 50,000
Excellent 20,000
What is expected in October?
Date posted: February 20, 2019. Answers (1)
- A Markov process describes the movement among the different states of a system as a function of time. Give the various steps in using a...(Solved)
A Markov process describes the movement among the different states of a system as a function of time. Give the various steps in using a Markov process for determining a state at (t + 2) and steady state two periods after given state.
Date posted: February 20, 2019. Answers (1)
- The total cost function and demand function of Migoya Construction company (MCC) are as follows:(Solved)
The total cost function and demand function of Migoya Construction company (MCC) are as follows:
Required:
i) Write down the expression of average cost per unit and graph it for x values between x=0 and x=8.
ii) Write the expression for total revenue.
iii) If total revenue is to be maximized, what is the price to be charged?
v) What is the price that maximizes profit?
Date posted: February 20, 2019. Answers (1)
- How does differential calculus assist managers in their optimization problems when faced with single variables?(Solved)
How does differential calculus assist managers in their optimization problems when faced with single variables?
Date posted: February 20, 2019. Answers (1)
- MMK Ltd. plans to conduct a survey. The following table shows the tasks involved, the immediately preceding tasks and for each activity duration the most...(Solved)
MMK Ltd. plans to conduct a survey. The following table shows the tasks involved, the immediately preceding tasks and for each activity duration the most likely estimate (L), the optimistic estimate (O) and the pessimistic estimate (P).
Required:
a) Compute the mean duration and standard deviation for each task
b) The project is budgeted to cost Sh.500,000. Actual costs per day are Sh.10,000. By first identifying the critical path from drawing a network diagram can the project be implemented within the budget.
c) What is the probability of finishing the project 4 days earlier than the expected duration?
Date posted: February 20, 2019. Answers (1)