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.

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

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?

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

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

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

Your company, Acme Computers, is considering outsourcing its customer support activities. Your team has been assigned the job of determining which of 3 companies would best meet the company’s needs. Your company has determined that the maximum yearly contract that they are willing to pay is $1,000,000. Your team has also determined that the factors important to Acme Computer and the weights that the factors should be assigned are “low cost” (weight factor = 4), “familiarity of the company with Acme’s product lines” (weight factor = 8), “number of support lines the company will staff” (weight factor = 6), “fluency of the company’s staff with English” (weight factor = 8), and “demonstrated ability to deal quickly and satisfactorily with customer issues” (weight factor = 3).

You have bids from 3 companies: Anderson Support, which offered a bid of $800,000; Beta Technology, which offered a bid of $950,000 and Calloway Services, which offered a bid of $1,100,000. Your team scores them according to the following table:

a.Based on the information given, are you satisfied with the bids that you have received? Why or why not?

b. Use the Kepner-Tregoe technique to determine which company’s bid should be accepted if any. Show your work.

c. Which company should you choose for outsourcing your customer support? Why? Why may you be concerned about going with that company?