Using the following returns, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. Returns Year X Y 1 11 % 23 % 2 29 44 3 18 -11 4 -19 -25 5 20 52

Using the following returns, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. Returns Year X Y 1 11 % 23 % 2 29 44 3 18 -11 4 -19 -25 5 20 52

which of the following activity most likely lead to activation of protein kinase A

1. activation of p13 kinase and downstream Rac GTPase

2. cytosolic Catt change

3. activation of adenylyl cyclase by Gx subunit

4. activation of PLC by GBY subunits

the observation that G-actin subunits tend to be incorporated into F-actin at the barbed end and released from the pointed end is known as

1. treadmilling

2. dynamic instability

3. G-protein coupled incorporation

4. fluorescence recovery after photobleaching

a) What is the strength and limitation od the four methods for finding the roots of equations: (1) the graphical method; (2) the bisection method; (3) the simple (one-point) iteration method and (4) the Newton Raphson method. You can use graphs or example to enhance your explanation.

b) Discuss the strength and limitation of (1)naive Gauss elimination; (2)Gauss elimination with partial pivoting, (3) Jacobi iteration and (4) Gauss-Siedel method in solving the set of linear equations, in terms of error and convergence.

The forecast for each week is 50 units each week and customer orders are as shown in the table below. The beginning inventory level is 0 and the production lot size is 75. Determine Available-to-promise inventory under the condition that “schedule production when the projected on-hand inventory would be negative without production”.

1. An adverse material usage variance could be caused by which of the following?
   1. The storeroom supplying less material than is required by production
   2. The purchase of cheap material
   3. Poorly maintained machinery
   4. A series of short deliveries

1. Items 1 and 2 only
2. Items 2 and 3 only
3. Items 3 and 4 only
4. Items 1 and 4 only.

2. Which of the following situations is likely to cause adverse material usage variance?
   1. A shortage of the material used
   2. Employing unskilled machine operators
   3. Machinery idle time
   4. Limited storage space

A composition teacher wishes to see whether a new grammar program will reduce the number of grammatical errors her students make when writing a two-page essay. The data are shown here.

Student 1 2 3 4 5 6

Errors before 12 9 0 5 4 3

Errors after 9 6 1 3 2 3

a. To find the 95% confidence interval for μd., what critical value should be used?

b. Find the 95% confidence interval for μ_d.

1. In New Mexico, 15% of residents are covered by Medicaid. 10% of residents are covered by Medicare. 3% of residents are dual eligible and covered by both Medicare and Medicaid. Draw a Venn Diagram and then calculate the probability that a New Mexico resident selected at random will be covered by either Medicare or Medicaid.

2.  A binomial distribution describes a random variable, X, that has 4 possible outcomes. Outcome 1 has a probability of 25%, Outcome 2 has a probability of 15%, Outcome 3 has a probability of 20%. What is the probability of Outcome 4?