David Palmer identified the following bonds for investment:
The three bonds were issued on July 1, 2011.
(Each Part is Independent)
In: Finance
Calculate the volume of the closed body with z2 + (x - 2)2 = 4, y = 3 and x + y = 8 surfaces with a double integral of polar coordinates.
In: Math
7) Determine the equations of the lines tangent to the
graph of 9?2 + 4?2 + 18? − 16? − 11 = 0 at the points where x = 0.
Where do these two lines
intersect?
In: Math
Given that f "= - 12 (x-2) ^ 2 + 4, estimate the error obtained by approximating the integral of f (x) on the interval [1.5,2.5] with n = 4, using trapezoids.
Find the domain of the vector function r(t)= <sent,lnt,1/(x-2).
find the equation of the plane that passes through the point (-1,3, -8) and is parallel to the plane 3x-4y-6y = 9
find the equation of the line parallel to the plane 2x + y + z = 8 that passes through the point (1,2,3)
Please answer this 4 i need them quickly
In: Math
Place 4 charges at the corners of a square which is 2 meters by 2 meters (4 large squares along each length). Place two +1 nC charges at adjacent corners and two -1 nC charges at the other two corners.
Determine the direction of the electric field at the following
three points:
Point E halfway between two like charges. (-120 degrees, 50
V/m)
Point F halfway between two opposite charges. (-90.5 degrees, 309
V/m)
Point G at the center of the square. (90 degrees, 210 V/m)
1. For the points E, F and G, draw a diagram showing both charges and the two individual field vectors (one for each charge) and explain why their vector sum points in the direction that you.
2. Determine the electric potential at the points E, F and G. List them numerically and give an explanation for their value
In: Physics
Predicting High/Low user of Social Networking Sites among students
A study was conducted to identify the variables which distinguish between heavy/light users of social networking sites among students. A questionnaire was designed for the purpose. The social networking sites considered for the study were Facebook, Orkut, Linked-in, Twitter, etc. the online survey was conducted on a sample of 61 students in the age group of 20 to 30. The collected response data is attached herewith in excel sheet.
DATA Reference:
| Resp. No. | X1 | X2 | X3A | X3B | X3C | X3D | X3E | X3F | X3G | X3H | X3I | X3J | X3K | X3L |
| 1 | 2 | 3 | 1 | 2 | 3 | 5 | 2 | 3 | 2 | 5 | 4 | 2 | 2 | 1 |
| 2 | 4 | 3 | 4 | 4 | 5 | 2 | 2 | 3 | 4 | 2 | 2 | 4 | 4 | 1 |
| 3 | 2 | 3 | 1 | 5 | 3 | 2 | 2 | 5 | 3 | 1 | 1 | 4 | 1 | 1 |
| 4 | 2 | 3 | 5 | 4 | 5 | 3 | 4 | 5 | 5 | 4 | 5 | 5 | 3 | 3 |
| 5 | 2 | 2 | 4 | 4 | 5 | 4 | 3 | 3 | 3 | 2 | 3 | 4 | 3 | 2 |
| 6 | 2 | 2 | 2 | 4 | 5 | 1 | 1 | 2 | 2 | 1 | 2 | 3 | 2 | 1 |
| 7 | 1 | 2 | 2 | 2 | 3 | 1 | 1 | 1 | 2 | 1 | 1 | 3 | 2 | 1 |
| 8 | 4 | 1 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 5 | 1 |
| 9 | 2 | 2 | 3 | 5 | 4 | 4 | 4 | 3 | 2 | 4 | 5 | 5 | 3 | 2 |
| 10 | 1 | 1 | 3 | 5 | 5 | 1 | 3 | 2 | 1 | 1 | 2 | 4 | 2 | 1 |
| 11 | 1 | 1 | 5 | 1 | 2 | 5 | 3 | 3 | 3 | 4 | 4 | 2 | 5 | 5 |
| 12 | 4 | 1 | 3 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 2 |
| 13 | 2 | 2 | 5 | 4 | 4 | 2 | 5 | 3 | 3 | 2 | 2 | 4 | 3 | 1 |
| 14 | 1 | 1 | 5 | 1 | 1 | 5 | 5 | 5 | 3 | 5 | 3 | 3 | 5 | 5 |
| 15 | 1 | 1 | 3 | 4 | 5 | 1 | 3 | 4 | 4 | 3 | 3 | 4 | 1 | 1 |
| 16 | 1 | 1 | 5 | 1 | 1 | 2 | 5 | 5 | 5 | 5 | 3 | 5 | 5 | 5 |
| 17 | 1 | 1 | 1 | 4 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 4 | 1 | 2 |
| 18 | 2 | 2 | 3 | 2 | 4 | 1 | 4 | 2 | 4 | 5 | 3 | 5 | 3 | 1 |
| 19 | 4 | 1 | 2 | 3 | 2 | 2 | 2 | 2 | 3 | 4 | 4 | 3 | 2 | 2 |
| 20 | 1 | 1 | 5 | 4 | 4 | 2 | 1 | 1 | 1 | 1 | 5 | 4 | 1 | 5 |
| 21 | 3 | 1 | 3 | 4 | 5 | 4 | 4 | 4 | 3 | 3 | 2 | 2 | 3 | 4 |
| 22 | 1 | 1 | 2 | 4 | 5 | 1 | 2 | 2 | 2 | 3 | 3 | 5 | 3 | 1 |
| 23 | 3 | 1 | 4 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 5 | 4 | 3 |
| 24 | 1 | 1 | 3 | 5 | 5 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 3 | 3 |
| 25 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 2 | 1 |
| 26 | 1 | 1 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 1 | 3 | 4 | 2 | 2 |
| 27 | 1 | 1 | 4 | 4 | 5 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 3 |
| 28 | 3 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |
| 29 | 2 | 2 | 2 | 3 | 4 | 2 | 3 | 4 | 4 | 4 | 3 | 2 | 2 | 1 |
| 30 | 1 | 3 | 4 | 4 | 4 | 4 | 4 | 5 | 4 | 4 | 5 | 5 | 2 | 4 |
| 31 | 1 | 1 | 4 | 4 | 5 | 2 | 5 | 3 | 5 | 2 | 5 | 5 | 3 | 1 |
| 32 | 2 | 2 | 3 | 4 | 4 | 4 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| 33 | 1 | 2 | 3 | 1 | 2 | 4 | 4 | 3 | 2 | 2 | 4 | 2 | 1 | 1 |
| 34 | 1 | 1 | 4 | 4 | 5 | 4 | 3 | 3 | 3 | 4 | 4 | 4 | 3 | 4 |
| 35 | 1 | 4 | 1 | 4 | 4 | 5 | 4 | 4 | 3 | 4 | 3 | 4 | 4 | 5 |
| 36 | 2 | 4 | 2 | 3 | 3 | 4 | 4 | 3 | 4 | 3 | 4 | 4 | 3 | 5 |
| 37 | 2 | 3 | 3 | 2 | 3 | 3 | 4 | 4 | 4 | 5 | 4 | 5 | 2 | 4 |
| 38 | 2 | 3 | 1 | 3 | 3 | 4 | 3 | 3 | 3 | 4 | 3 | 4 | 3 | 4 |
| 39 | 1 | 3 | 1 | 4 | 4 | 5 | 2 | 3 | 2 | 2 | 3 | 5 | 3 | 5 |
| 40 | 2 | 3 | 1 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 4 | 4 |
| 41 | 2 | 3 | 2 | 3 | 4 | 3 | 5 | 5 | 4 | 4 | 5 | 4 | 3 | 3 |
| 42 | 1 | 3 | 4 | 1 | 1 | 1 | 3 | 2 | 1 | 1 | 4 | 2 | 4 | 3 |
| 43 | 2 | 3 | 2 | 2 | 3 | 4 | 4 | 4 | 3 | 3 | 3 | 4 | 2 | 4 |
| 44 | 1 | 2 | 2 | 2 | 4 | 3 | 2 | 2 | 3 | 4 | 1 | 4 | 2 | 4 |
| 45 | 4 | 4 | 4 | 1 | 1 | 2 | 3 | 2 | 1 | 2 | 5 | 3 | 4 | 4 |
| 46 | 1 | 3 | 1 | 3 | 4 | 3 | 4 | 3 | 4 | 4 | 3 | 4 | 3 | 3 |
| 47 | 1 | 1 | 1 | 5 | 5 | 5 | 1 | 1 | 1 | 1 | 1 | 5 | 1 | 1 |
| 48 | 1 | 2 | 1 | 2 | 3 | 3 | 2 | 2 | 3 | 3 | 2 | 3 | 2 | 3 |
| 49 | 1 | 2 | 1 | 2 | 3 | 3 | 2 | 2 | 3 | 3 | 2 | 4 | 3 | 4 |
| 50 | 1 | 2 | 1 | 2 | 3 | 4 | 3 | 2 | 3 | 4 | 2 | 4 | 2 | 4 |
| 51 | 1 | 1 | 5 | 3 | 3 | 4 | 2 | 2 | 3 | 3 | 2 | 4 | 4 | 2 |
| 52 | 2 | 2 | 4 | 5 | 4 | 4 | 4 | 4 | 2 | 3 | 3 | 4 | 4 | 5 |
| 53 | 2 | 1 | 4 | 3 | 4 | 4 | 3 | 2 | 3 | 3 | 3 | 4 | 3 | 3 |
| 54 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| 55 | 4 | 4 | 1 | 5 | 5 | 5 | 5 | 5 | 1 | 5 | 1 | 5 | 1 | 5 |
| 56 | 4 | 4 | 2 | 4 | 4 | 3 | 3 | 2 | 2 | 5 | 2 | 4 | 2 | 5 |
| 57 | 1 | 2 | 2 | 3 | 4 | 4 | 2 | 2 | 2 | 3 | 2 | 4 | 4 | 4 |
| 58 | 1 | 3 | 2 | 4 | 4 | 4 | 2 | 2 | 2 | 4 | 3 | 5 | 4 | 4 |
| 59 | 1 | 2 | 2 | 4 | 4 | 5 | 2 | 2 | 3 | 4 | 3 | 5 | 3 | 4 |
| 60 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 3 | 4 | 3 | 5 | 3 | 4 |
| 61 | 1 | 2 | 1 | 5 | 5 | 5 | 2 | 2 | 3 | 4 | 3 | 4 | 2 | 3 |
| X1 | = | Time spent on week days | ||||||||||||
| 1 = | Less than 1 Hr | |||||||||||||
| 2 = | 1 to less than 3 hours | |||||||||||||
| 3 = | 3 to less than 5 hours | |||||||||||||
| 4 = | More than 5 hrs | |||||||||||||
| X2 | = | Time spent on week ends | ||||||||||||
| 1 = | Less than 2 hrs | |||||||||||||
| 2 = | 2 to less than 4 hours | |||||||||||||
| 3 = | 4-6 hrs | |||||||||||||
| 4 = | More than 6 hrs | |||||||||||||
| X3A | = | Linking with Professional | ||||||||||||
| X3B | = | Messaging | ||||||||||||
| X3C | = | Networking | ||||||||||||
| X3D | = | Make new friends | ||||||||||||
| X3E | = | Promote events | ||||||||||||
| X3F | = | Blogging | ||||||||||||
| X3G | = | News Updates | ||||||||||||
| X3H | = | Games | ||||||||||||
| X3I | = | Education | ||||||||||||
| X3J | = | Photo sharing | ||||||||||||
| X3K | = | Job seeking | ||||||||||||
| X3L | = | Online dating | ||||||||||||
|
For questions X3A to X3L, 1 = least useful and 5 = extremely useful |
||||||||||||||
Questions:
Q1. Divide the sample into two groups-one that is using the social networking site for less than one hour on weekdays (low users) and the second which is using the social networking site for one or more hours (high users). Run a two-group Logistic regression analysis with high/low user as a categorical dependent variable and the variables X3A to X3L as predictor variables. To:
a. Compute the percentage of respondents that it is able to classify correctly
b. Determine the statistical significance of the logistic function
c. Identify which of the predictor variables are relatively better in classifying between the two groups.
d. Classify a new respondent into one the two groups by building a decision rule and a cut-off score.
e. Explain the odds ratios in the SPSS output
Q2. Divide the sample into two groups-one that is using the social networking site for less than four hours on weekends(low users) and the second which is using the social networking site for four or more hours on weekends(high users) and repeat the analysis as carried out in the first question.
In: Statistics and Probability
What is a z-test?
Pre-test Post-test
4 1
6 9
7 2
8 3
1 6
In: Statistics and Probability
R-selected species would exhibit?
1. Type 1 survival curve
2. External fertilization
3. Eutherian development
4. Viviparity
In: Biology
x −4 −3 −2 −1 0 P(X=x) 0.2 0.1 0.3 0.2 0.2
Step 1 of 5: Find the expected value E(X). Round your answer to one decimal place.
Step 2 of 5:
Find the variance. Round your answer to one decimal place.
Step 3 of 5:
Find the standard deviation. Round your answer to one decimal place.
Step 4 of 5:
Find the value of P(X>−1)P(X>−1). Round your answer to one decimal place.
Step 5 of 5:
Find the value of P(X≤−1)P(X≤−1). Round your answer to one decimal place.
In: Statistics and Probability
| Year | Asset Return | S&P 500 Return |
| 1 | 12 | 7 |
| 2 | 12 | 14 |
| 3 | -1 | -3 |
| 4 | 14 | 9 |
| 5 | 9 | 8 |
| 6 | 15 | 15 |
| 7 | 20 | 12 |
| 8 | -10 | -5 |
| 9 | 7 | 9 |
| 10 | 12 | 14 |
Find the Beta in Excel
In: Finance