Please help solve the following data sufficiency GMAT practice exam question and explain how you came to your conclusion (answer).

Over a seven week period, a company monitored the output of two of its sectors, C and D. Each week, the company calculated how many units were produced in each sector. The sector that produced the greatest number of units for four or more of the seven weeks was considered the more efficient sector. Which sector was deemed more efficient?

(1) Over the seven week period, sector C produced twice as many units as sector D

(2) The sector that was more efficient was known by the fifth week

(A) if statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked

(B) if statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked

(C) if BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient

(D) if EACH statement ALONE is sufficient to answer the question asked

(E) if statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked and additional data specific to the problem are needed.

Solution Preview

Before you begin to answer these type of data sufficiency questions, you need to remember or memorize the following data sufficiency directions:

Data Sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are SUFFICIENT for answering the question. Using the data given in the statements PLUS your knowledge of mathematics and everyday facts (such as the number of days in a particular month or the meaning of counterclockwise) you are to answer (o(A) ...

Solution Summary

This solution provides an answer and explanation to a Data sufficiency GMAT practice exam question.

An admissions committee must select students for an MBA program. Past data show that 70% of students complete (C) the program. It is also known that 50% of the graduating students scored above 500 (A) on the GMATtest. While 20% of the dropouts (D) scored that well. Consider a new MBA student.
A) What is the prior probabilty

The following are the GMAT scores and the GPA's of a random sample of 6 students in a graduate school.
During a 'cram' weekend the students learned several GMAT applications. With a 0.05 los did the GPAs increase?
BEFORE AFTER
GMAT GPA GPA
610 3.60 3.70
470 3.25 3.30
590 3.50 3.45
520 3.

In a short statement of 250‐500 words, please explain why you are requesting a substitution of the GMAT. (University of Phoenix)
• Indicate any previous graduate academic experience (B.A in Business Administration)
• Summarize your professional experience including your current role and professional duties
• Be sp

Help with this problem please:
Jane is told that her GMAT score is in the top 2% in her region at 28. The average score was 18. Tom scores 25 and Sandra scores 17. What are Jane, Tom, and Sandra's percentile scores?

What types of assessments have you taken? Consider assessments such as the Graduate Record Examinations (GRE®), SAT®, and Iowa Tests of Basic Skills (ITBS). How was the assessment conducted?

Scores on the Graduate Management Admission Test (GMAT) are normally distributed with a mean of 500 and a standard deviation of 80.
a. Find the probability that a randomly selected test-taker will score at least 640 on the GMAT.
b. Find the probability that a randomly selected test-taker will score between 420 and 640.

1. The following are the GMAT scores and the GPA's of a random sample of 6 students in a graduate school. During a "cram" weekend the students learned several GMAT applications. With a 0.05 level of significance did the GPAs increase?
BEFORE AFTER

The director of graduate studies at a large college of business would like to predict the grade point average (gpa) of students in an MBA program based on Graduate Management admission test (GMAT) scores. A sample of 20 students who had completed 2 years in the program is selected. The results are as follows:
Observation G

1. Each year a nationally recognized publication conducts its "Survey of America's Best Graduate and Professional Schools."
An academic advisor wants to predict the typical starting salary of a graduate at a top business school using GMAT score of the school as a predictor variable. A simple linear regression of SALARY vers