1. (8 pts.) PBS (Sept. 6, 2010) cited a report (Organisation for Economic Co-operation and Development) examining both the speed and cost of the Internet. PBS reported the following: "Japan has the fastest average connection speed at 61 megabits per second and the lowest monthly connection price (per mbps) at $0.27. The United States ranked 15th with an average connection of 4.8 mbps and monthly price (per mbps) of $3.33." Below are the updated data for 2012 (adapted slightly for this assignment). The first column is the cost mbps and the second column includes the cost inclusive of the line charges.

                                         Cost MBPS    Total Cost/Month

Find the mean, median, and mode for the data for the cost MBPS.

          Mean =                            Median =                            Mode = ___________                   

Find the range, standard deviation, and variance for these data.

          Range =                               S =                                S2 =  ____________         

Find the mean, median, and mode for these data for the total monthly cost inclusive of the line charges.

           Mean =                            Median =                            Mode = ___________                   

Find the range, standard deviation, and variance for these data.

           Range =                               S =                                S2 =  ____________         

Write a short email describing the results of this study to a friend. Remember to convey the results of the study particularly in relation to variability. What does this study tell you about Internet costs around the globe?

2. (5 pts.) Iron levels for a sample of adult women on a vegan diet are recorded below (normal iron levels: women 40-150; men 50-175 mcg/dL).

65

           115

146

           117

95

           108

           132

           127

             86

             48

85

           117

126

           117

             98

           118

           111

           123

             85

             43

   Find the mean, median, and mode for the data.

        Mean =                             Median =                          Mode =  ___________                 

Find the range, standard deviation, and variance for the data.

         Range =                                 S =                               S2 =  ___________                   

You have a friend who has just decided to become a vegan. What would you tell your friend?

3. (2 pts.) Find the area between the following z-scores.

   Answer                  : z = 0 and z = 1.45

   Answer                  : z = 0 and z = 1.67

   Answer                  : z = -.96 and z = 0

   Answer                  : z = -1.92 and z = 0

4. (2 pts.) Find the area between the following z-scores

   Answer                 : z = -1.4 and z = .8

   Answer                 : z = -2.8 and z = 1.73

   Answer                 : z = -1.6 and z = -.35

   Answer                : z = 1.3 and z = 1.92

5. (3 pts.) Students completed an exam with a mean = 50 and a standard deviation of 8. Using this information, answer each of the questions below.

   Answer                 : Clem received a score of 56 on the test. What percentage of students scored less than Clem?

   Answer                 : Ewald received a score of 40 on the test. What percentage of students scored higher than Ewald?

   Answer                 : Roscoe received a score of 45 on the test. What percentage of students scored higher than Roscoe?

   Answer                 : Myrtle received a score of 47 on the test. Buford received a score of 54 on the test. What percentage of student scored between Myrtle and Buford?

For each state below, spell out plausible responses for a TFTP receiver upon receipt of a Data[N] packet. Your answers may depend on N and the packet size. Indicate the events that cause a transition from one state to the next. The TFTP states were proposed in 16.4.2   TFTP States.

(a). UNLATCHED

(b). ESTABLISHED

(c). DALLYING

Example: upon receipt of an ERROR packet, TFTP would in all three states exit.

2. 2D Density of States (~Kasap 4.9)

Kasap Section 4.5 (in 4th Ed.) derives an expression for the density of states for electrons in a 3D infinite potential well (3D Sommerfeld box). This derivation is similar to the one we did in class.

a. Following the approaches used in the 3D derivations, consider an electron confined to a 2D infinite potential well and derive an expression for the 2D density of states, g_2D, which is the number of states per unit area per unit energy with energy E between E and E+dE.

(Hint: you might start by solving the 2D Schrödinger Eqn. to determine the allowed k-space values, which you could then plot and use to guide your derivation.)

The University of Arkansas recently approved out of state tuition discounts for high school students from any state. The students must qualify by meeting certain standards in terms of GPA and standardized test scores. The goal of this new policy is to increase the geographic diversity of students from states beyond Arkansas and its border states. Historically, 90% of all new students came from Arkansas or a bordering state. Ginger, a student at the U of A, sampled 180 new students the following year and found that 157 of the new students came from Arkansas or a bordering state. Does Ginger’s study provide enough evidence to indicate that this new policy is effective with a level of significance 10%? What would be the correct decision?

A case study of inventory management practices in united nation.

not less than 3000 words

what are the factors that affect the national differences in HRM between Australia, Indonesia and United Kingdom

What are some ways that non-profit organizations like United Way raise money?

In United State of America they say a billion is thousands million what is a billion in south africa

Discuss legal system in United Arab Emirates and provide a few examples of its execution.