1. Would Santa Clarita (latitude 34^oN) ever receive direct, vertically overhead rays of the sun? Why or why not?

2. Why does the Equator get 12 hours of day and 12 hours of night, every day of the year, and all other latitudes do not?

3. On the June solstice, why does the area between the Arctic Circle (66.5^oN) and North Pole (90^oN) have 24-hour daytime, whereas the area between the Antarctic Circle (66.5^oS) and South Pole (90^oS) gets 24-hour nighttime?

4. Would Istanbul, Turkey (41^oN) ever get 12 hours of night in July? Give at least 2 accurate reasons for your answer.

5. Define aphelion and perihelion What are their dates? Why don’t they have any effect on our seasons?

You are a construction manager for You can Do It Construction, and have been given an 135,000 square foot, 6-story, medical office and laboratory building project in Santa Fe to manage. The project is located at the southeast quadrant of US 599 and Airport Rd, which is just NW of I-40. The building itself is in the EAST corner of the parcel.

The plans call for a structural steel framework with exterior walls of imported Italian marble. The plans, which were done by a firm in North Dakota, also call for two stories of underground parking constructed with precast concrete components trucked in from Amarillo, Tx.

Write 3 paragraphs on what you’d consider when laying out the jobsite and who you might consult with. Be thorough and concise.

Required information

[The following information applies to the questions displayed below.]
  
In 2018, the Westgate Construction Company entered into a contract to construct a road for Santa Clara County for $10,000,000. The road was completed in 2020. Information related to the contract is as follows:

Westgate recognizes revenue over time according to percentage of completion.

Required:

1. Calculate the amount of revenue and gross profit (loss) to be recognized in each of the three years. (Do not round intermediate calculations. Loss amounts should be indicated with a minus sign.)

As part of a school project students will be randomly sampling from the students in the class. The assignment is to estimate the proportion of students who play on a sports team. Each student will randomly select 6 students. One student found out that 3 of the 6 play a sport. The teacher has collected data from all students and found that out of the 31 students in the class 21 of them played sports.

Give the statistic for the percentage of students who play sports.

____%

A statistics student at a small liberal arts college who is curious about the relationship between the amount of time students at his college spend on social networking sites and their performance at school decides to conduct a survey. Four research strategies for collecting data are described below. In each, name the sampling method proposed and any bias you might expect. Strategy 1: He obtains a list of the 1500 students at the college. He chooses a random number k k between 1 and 15 and then samples that person and every k k th person on the list. He emails the survey to each of the people in the sample and asks them to complete it by next Friday. 1. What is the sampling method? A. Cluster sampling B. Simple random sampling C. Convenience sampling D. Systematic sampling E. Stratified sampling 2. What type of bias would you expect? (check all that apply) A. Selection bias B. Nonresponse bias C. No bias in this survey D. Response bias Strategy 2: He gives out the survey only to his friends, and makes sure each one of them fills out the survey. 3. What is the sampling method? A. Simple random sampling B. Convenience sampling C. Systematic sampling D. Stratified sampling E. Cluster sampling 4. What type of bias would you expect? (check all that apply) A. Nonresponse bias B. Response bias C. No bias in this survey D. Selection bias Strategy 3: He randomly chooses 3 floors of the largest dorm on campus and distributes a paper survey to each resident on those floors. He places a box in the common room of the dorm to collect the completed surveys. 5. What is the sampling method? A. Stratified sampling B. Cluster sampling C. Systematic sampling D. Simple random sampling E. Convenience sampling 6. What type of bias would you expect? (check all that apply) A. Selection bias B. No bias in this survey C. Nonresponse bias D. Response bias 7. Which strategy will give him the most representative sample of students at his college? A. Strategy 1 B. Strategy 2 C. Strategy 3

A college records the module registration information of their students in a database named College.mdb,which contains three tables,STUDENT,MODULE andMODULE_REG. A student may enroll in the same module as many times as they like. However, they can only enroll each module at most once in each semester. The design of the three tables are shown below:

Table STUDENT

Table MODULE_REG

Table MODULE

Download the database file College.mdbfrom Moodle. Rename it as College_Lxx_syyyyyy.mdb(where Lxxis your class andsyyyyyyis your student number, e.g. College_L01_s170001.mdb/College_L01_s170001.accdb) and complete the following tasks.

(a) Create a primary key of the table MODULE_REG.                                                                (1 mark)

(b)   Establish the relationships between the tables STUDENT,MODULE andMODULE_REG.      (1 mark)

(c)    Create queries to perform the following tasks:

1. Display the student IDs, studentnames (including both first name and last name), as well as the code and name of modules that each student had enrolled in the secondsemester of 2019. Arrange the records in ascendingorder of the student IDs. Save the query as Q1.
   Note: You mustnotshow the semester and the year in the output.                            

(ii) Display the total number of students in each gender. Save the query as Q2.              

3. Produce a list of module codes, module names, and the total number of enrollment records of each module. Arrange the records in ascendingorder of the total number of enrollment records of each module. Save the query as Q3.

Produce a list of module codes, module names, student names (including both first name and last name), and student IDs of enrolled students for all modules with module codes beginning with “COM” being registered in the firstsemester of 2019. Arrange the records in ascendingorder of module codes. Save the query as Q4.
Note: You mustnotshow the semester and the year in the output.

he weights of randomly selected 5 female students and 5 male students are given by the following:weights for male students:160,165,152,158,178weights for female students:169,154,158,156,162.

Let the weight distributions of male and female students follow N(μ1,σ1) and N(μ2,σ2)respectively.

Find the correlation coefficient between the heights of male and female students.(5 points)

A linear transformation from R3-R4 with the V set of vectors x, where T(x)=0, is V a subspace of R3?

Astronomy question.

Which star is coolest?

a. M8 V

b. K1 I

c. A7 III

d. B3 V

Prove or disprove: Between any n-dimensional vector space V and Rⁿ there is exactly one isomorphism T : V → Rⁿ .