A+ Answers of the following Questions

1. A student scored 37 percent on a test, and was in the 23rd percentile. Explain these two numbers.

2. In each of the four examples listed below, one of the given variables is independent (x) and one of the given variables is dependent (y). Indicate in each case which variable is independent and which variable is dependent.
I. Course grade; Test score
II. Length of ride; Taxi fare
III. Monthly commission; Monthly sales
IV. Crop yield; Rainfall

3. A sample of purchases at the local convenience store has resulted in the following sample data, where x = the number of items purchased per customer and f = the number of customers. 
x
1
2
3
4
5
f
7
21
8
8
7
· What does the 21 stand for in the above table?
· Find the midrange of items purchased.
· How many items were purchased by the customers in this sample?

1. Suppose we have a set of blood pressures with a mean of 110 Systolic, and a sample standard deviation of 20 points. If we assume a normal distribution of Systolic blood pressures, then between what two values can we be assured 99.7% of all Systolic blood pressures will lie?

2. SAT I scores around the nation tend to have a mean scale score around 500, a standard deviation of about 100 points and are approximately normally distributed. A person who scores (a perfect) 800 on the SAT I has

3. In terms of the mean and standard deviation:
– What does it mean to say that a particular value of x has a standard score of +0.8? 
– What does it mean to say that a particular value of x has a z-score of -2.2? 

Question:

 I. What score was earned by more students than any other score? Why? 

II. What was the highest score earned on the exam? 

III. What was the lowest score earned on the exam?

IV. According to Chebyshev’s Theorem, how many students scored between 48 and 92?

V. Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 59 and 81? 

1. You understand the importance of marketing in helping the company increase its revenues. Discuss the following observation with your colleagues:
You can have the greatest product in the world, but if no one knows about it, most likely the product will not sell. write 400–600 words that respond to the following questions with your thoughts, ideas, and comments. 
What is the job of the marketer in helping customers and potential customers know about the product?
In addition to your own interpretations, incorporate the following ideas in your discussion:
The definition of marketing
The marketing mix
Considerations about whether the product is ready to go to market
Descriptions of at least 2 marketing concepts that can be used to help sell the product

2. To what amount will $4,900 invested for 9 years at 11% compounded annually accumulate? Round to the nearest cent

1. Assume that a company uses a sales journal, a purchases journal, a cash receipts journal, a cash disbursements journal, and a general journal. A sales return for credit on account would be recorded in the:
sales journal. 
general journal. 
cash receipts journal. 
accounts receivable ledger. 

2. A book of original entry that is used to record and post transactions of a similar type is a:
schedule. 
columnar ledger. 
special journal. 
general journal. 

3.The accounting principle that requires an accounting information system to report useful, understandable, timely, and pertinent information for effective decision-making is the: control principle. 
compatibility principle. 
relevance principle. 
flexibility principle.

 

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