Questions
In December​ 2004, 44​% of students in high school were satisfied with the lunches supplied through...

In December​ 2004, 44​% of students in high school were satisfied with the lunches supplied through the school. In May​ 2010, an organization conducted a poll of 766 students in high school and asked if they were satisfied with the lunches supplied through the school. Of the 766 ​surveyed, 299 indicated they were satisfied. Does this suggest the proportion of students satisfied with the quality of lunches has​ decreased? ​(a) What does it mean to make a Type II error for this​ test? ​(b) If the researcher decides to test this hypothesis at the alpha=0.10 level of​ significance, compute the probability of making a Type II​ error, beta​, if the true population proportion is 0.39. What is the power of the​ test? ​(c) Redo part​ (b) if the true population proportion is 0.43.

In: Statistics and Probability

Read pages 1 – 10 in the book by Kothari, C.R., (2004) Research Methodology: Methods and...

Read pages 1 – 10 in the book by Kothari, C.R., (2004) Research Methodology: Methods and Techniques. Then answer the following three questions in your own words.

a) In your own words, write a summary of how you understand these 10 pages;
b) Explain these key concepts (short notes):
a. Research methods vs methodology
b. Research vs scientific method
c. Research approaches
d. Types of research
c) Why would you want to undertake research? (half a page)

In: Economics

In December​ 2004, 54​% of students in high school were satisfied with the lunches supplied through...

In December​ 2004, 54​% of students in high school were satisfied with the lunches supplied through the school. In May​ 2010, an organization conducted a poll of 1045 students in high school and asked if they were satisfied with the lunches supplied through the school. Of the 1045 ​surveyed, 502 indicated they were satisfied. Does this suggest the proportion of students satisfied with the quality of lunches has​ decreased? ​

(a) What does it mean to make a Type II error for this​ test?

​(b) If the researcher decides to test this hypothesis at the alpha equals 0.10 level of​ significance, compute the probability of making a Type II​ error, beta​, if the true population proportion is 0.48. What is the power of the​ test?

​(c) Redo part​ (b) if the true population proportion is 0.52.

In: Statistics and Probability

The dataset ToyotaCorolla.jmp contains data on used cars on sale during the late summer of 2004...

The dataset ToyotaCorolla.jmp contains data on used cars on sale during the late summer of 2004 in the Netherlands. It has 1436 records containing details on 38 attributes, including Price, Age, Kilometers, HP, and other specifications. (a.) Explore the data using the data visualization (e.g., Graph > Scatterplot Matrix and Graph > Graph Builder) capabilities of JMP. Which of the pairs among the variables seem to be correlated? (three or four correlations please).

Multivariate Correlations

Price

Age_08_04

KM

HP

CC

Quarterly_Tax

Weight

Guarantee_Period

Price

1.0000

-0.8766

-0.5700

0.3150

0.1264

0.2192

0.5812

0.1466

Age_08_04

-0.8766

1.0000

0.5057

-0.1566

-0.0981

-0.1984

-0.4703

-0.1526

KM

-0.5700

0.5057

1.0000

-0.3335

0.1027

0.2782

-0.0286

-0.1389

HP

0.3150

-0.1566

-0.3335

1.0000

0.0359

-0.2984

0.0896

0.0762

CC

0.1264

-0.0981

0.1027

0.0359

1.0000

0.3070

0.3356

-0.0177

Quarterly_Tax

0.2192

-0.1984

0.2782

-0.2984

0.3070

1.0000

0.6261

-0.1634

Weight

0.5812

-0.4703

-0.0286

0.0896

0.3356

0.6261

1.0000

-0.0129

Guarantee_Period

0.1466

-0.1526

-0.1389

0.0762

-0.0177

-0.1634

-0.0129

1.0000

In: Economics

Read the book by Kothari, C.R., (2004) Research Methodology: Methods and Techniques. In addition, read the...

Read the book by Kothari, C.R., (2004) Research Methodology: Methods and Techniques. In addition, read the notes on “Model, Theory and Hypothesis” and those on ”Definition of Research by Use”. Then answer the following questions in your own words.
a) What is a hypothesis?
b) How would you go about developing a hypothesis?
c) What is a theory?
d) Here are three statements on Theory and Hypothesis. Explain why any of these statements would be a Theory or
Hypothesis.
1. 2. 3.
e) Ethics 1. 2. 3. 4.
5.
6. 7.
People with good educational qualifications earn more money (Max Weber) Black (Africans) people are poor because they are lazy (Trump)
Expanding the family income enables a rise in the percentage of income saved
in research – answer one option only. Explain your answers.
Ask respondents if they are ready to answer your questions – Yes or No
Explain to respondents the objectives of your research – Yes or No
Carry food and bottled water in the field when undertaking data collecting – Yes or No
When communities offer food to you (normally these are poor and marginalized people) – Excuse yourself or accept their food.
Which language should you use at community level (you are university graduate with good spoken English and no local language understanding? – English or local community language
Ask respondents to agree when taking their pictures in the field – Yes or No
In the middle of data collection, you sit under a tree and fill in all remaining questionnaires – Yes or No

In: Economics

According to a 2004 report by Roger Boe et. Al. of Correctional Service Canada, the mean...

According to a 2004 report by Roger Boe et. Al. of Correctional Service Canada, the mean length of a Canadian jail sentence in 2001/2002 was ? = 4.10 months with σ = 9.75 months.

a) Can we assume that prison sentences are normally distributed? Please explain.

b) Using the central limit theorem, what is the approximate probability that the mean sentence for a random sample of 225 prisoners is more than 4.75 months?

In: Statistics and Probability

The Sumatra-Andaman earthquake of December 26, 2004 with an undersea epicenter off the west coast of...

The Sumatra-Andaman earthquake of December 26, 2004 with an undersea epicenter off the west coast of Sumatra, Indonesia, as reported in [1][2]. It triggered a series of devastating tsunamis that spread throughout the Indian Ocean killing approximately 230,000 people, including more than 168,000 in Indonesia and over 30,000 in Sri Lanka [2]. Sahana [2], a free and open source disaster management information system developed in Sri Lanka in the immediate aftermath of the Indian Ocean tsunami. Suppose that Sahana is addressing those recommendations and associated challenges from the Tsunami Evaluation Commission (TEC).

List out (4) factors when Sahana project did not maintenance software consistency and stability

In: Computer Science

The Sumatra-Andaman earthquake of December 26, 2004 with an undersea epicenter off the west coast of...

The Sumatra-Andaman earthquake of December 26, 2004 with an undersea epicenter off the west coast of Sumatra, Indonesia, as reported in [1][2]. It triggered a series of devastating tsunamis that spread throughout the Indian Ocean killing approximately 230,000 people, including more than 168,000 in Indonesia and over 30,000 in Sri Lanka [2]. Sahana [2], a free and open source disaster management information system developed in Sri Lanka in the immediate aftermath of the Indian Ocean tsunami. Suppose that Sahana is addressing those recommendations and associated challenges from the Tsunami Evaluation Commission (TEC).

List out (4) factors of Sahana project security issue

In: Computer Science

The Study of Instructional Improvement (SII; Hill, Rowan, and Ball, 2004) was carried out by researchers...

The Study of Instructional Improvement (SII; Hill, Rowan, and Ball, 2004) was carried out by researchers at the University of Michigan to study the math achievement scores of first- and third-grade students in randomly selected classrooms from a national U.S. sample of elementary schools.

Using the information above answer the following question using excel and show work.

1.

  • Analyze Classroom data         
    • Describe the relationship between the dependent variable and independent variable
    • Run the appropriate test and you’re your conclusion
    • Give a report resuming your findings

Format:

A data frame with 1190 observations on the following 12 variables.

a. sex

: Indicator variable (0 = boys, 1 = girls)

b. minority

: Indicator variable (0 = non-minority students, 1 = minority students)

c. mathkind

: Student math score in the spring of their kindergarten year

d. mathgain

: Student gain in math achievement score from the spring of kindergarten to the spring of first grade (the dependent variable)

e. ses

: Student socioeconomic status

f. yearsteach

: First grade teacher years of teaching experience

In: Computer Science

Developing Job Descriptions for Red Lobster Red Lobster operates over 670 casual-dining seafood restaurants in the...

Developing Job Descriptions for Red Lobster

Red Lobster operates over 670 casual-dining seafood restaurants in the US and Canada, employing more than 63,000 people. When Red Lobster developed a new business strategy to focus on value and improve its image, it established a new vision, mission, and goals for the company. The restaurant chain simplified its menu with the highest-quality seafood it could offer at mid-range prices, traded its restaurants’ tropical themes for a crisp, clean look with white-shirt-and-black-pants uniforms for its employees, and added Northeastern coastal imagery to its menu and Web-site. Executing the new mission and differentiation strategy required hiring fun, hospitality-minded people who shared its values.

Although Red Lobster had not had any problem with hiring restaurant managers, the company felt that the managers it hired did not always reflect Red Lobster’s strategy, vision, and values. The company feels that their old job descriptions do not convey the passion and creativity that the new strategy requires from its employees. They want their job descriptions to help bolster recruitment of the kind of managers that will help advance the mission and create restaurant environments where employees feel motivated and customers feel welcome upon entering the establishment and positive about their experience when they leave.

The Charge

You have been hired as a consultant to help Red Lobster recruit management level staff. They have asked you to design an overall strategy that will help create job descriptions to improve the fit between its new management hires and its new business strategy. Job descriptions should help convey the importance of the Restaurant Manager position within the company and also in the restaurant itself. The process you design will help them, later on, develop other restaurant job descriptions for the service-level staff.

Question

Draw up a job description for the Red Lobster Restaurant Manager position that includes, at a minimum, the following:

Job title

Overall purpose statement - overall description of the broad function and scope of the position

List of duties or tasks performed critical to success

Decision-making requirements

Description of the relationships and roles within the company, including supervisory positions, subordinating roles and other working relationships

List of minimum qualifications and what experience/competencies an ‘ideal candidate’ would possess.

In: Operations Management