Question

Cortland Software, Inc. surveyed a sample of its programmers and recorded the following data on their:...

Cortland Software, Inc. surveyed a sample of its programmers and recorded the following data on their: age, gender, years of programming experience, whether or not they have a master’s degree, and annual salary.

Programmer

Age

Gender

Years of

Experience

Master’s

Degree

Salary

1

32

Male

8

No

$59,450

2

27

Male

2

Yes

62,750

3

31

Female

6

Yes

65,820

4

37

Males

5

No

54,620

5

29

Female

5

Yes

61,900

6

25

Female

4

No

48,370

a.            How many elements are in the data set?6

b.            How many variables are in the data set, not including the programmer number?6

c.             Which variables are categorical and which are numerical? The variable is a numerical measured on nominal scale and categorical is based on gender or age groups

d.            Are the data time series or cross-sectional? The cross-sectional data is collected from all the programmers at the same point in time.



On May 10, 2019 at 9:28 AM, Parker, Charles (chparke1) wrote:

2)A frequency distribution and a histogram are based on the same information.

As you read about a frequency distribution, comment on the ideas

a. the width of the classes

b. class limits

c. the class midpoint.

Then as you consider a histogram, I want you to think about the shape of the histogram and answer

d. if a histogram is skewed to the left, which tail is longer.

Homework Answers

Answer #1

Question 1

Part a

There are total 6 elements in the data set.

Part b

There are 5 variables present in the data set, not including the programmer number.

Part c

The categorical variables for the data set are given as gender, and Master’s degree. The numerical variables for the data set are given as age, years of experience, and salary.

The variables gender and Master’s degree have nominal scales, and the variables age, years of experience and salary have ratio scale.

Part d

The given data is cross-sectional.

Question 2

Part a

The width of the classes is the difference or distance between the upper limit and lower limit.

Part b

The minimum value of class and the maximum value of class are called as class limits.

Part c

The average of the upper limit and lower limit is called as the class midpoint.

Part d

If a histogram is skewed to the left, the left tail is longer.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A software firm collected data for a sample of 20 computer programmers. A suggestion was made...
A software firm collected data for a sample of 20 computer programmers. A suggestion was made that regression analysis could be used to determine if salary was related to the years of experience and the score on the firm’s programmer aptitude test. Use the Regression ToolPak to answer the following questions a. What is the estimated regression equation? b. What is the adjusted coefficient of determination? Interpret your findings. c. Interpret the coefficient for years Experience in context. d. Predict...
1. The characteristic of interest for the elements is called a(n) A sample B quantitative data...
1. The characteristic of interest for the elements is called a(n) A sample B quantitative data set C variable or random variable D histogram 2. A statistics professor asked students in a class their ages. On the basis of this information, the professor states that with certain accuracy, the average age of all the students in the university is 21.3 years. This is an example of A a census B descriptive statistics C an experiment D statistical inference 3. A...
The Lung Capacity data Several variables are recorded on individuals in a medical clinic, one of...
The Lung Capacity data Several variables are recorded on individuals in a medical clinic, one of which is their lung capacity. The variables in this data set are:             Gender (Male, Female)             Age (in years)             Height (inches)             Weight (pounds)             Chest (circumference, in inches)             Waist (circumference, in inches)             Activity (level, Light, Moderate, Heavy)             Smoke (Yes, No)             Capacity (lung capacity, in liters) You will not need to open the data file in order to...
Suppose the following data were collected relating CEO salary to years of experience and gender. Use...
Suppose the following data were collected relating CEO salary to years of experience and gender. Use statistical software to find the regression equation. Is there enough evidence to support the claim that on average female CEOs have higher salaries than male CEOs at the 0.050.05 level of significance? If yes, type the regression equation in the spaces provided with answers rounded to two decimal places. Else, select "There is not enough evidence." Salary Experience Female (1 if female, 0 if...
The Salary Institute of America (SIOA) has gathered the following data on individuals working in the...
The Salary Institute of America (SIOA) has gathered the following data on individuals working in the retail industry in Alabama. a. Construct a 90% confidence interval to estimate the population mean salary for females with bachelors who work in the retail industry in Alabama. Interpret your interval.   b. Suppose you would like to estimate the population proportiion of retail workers in Georgia who have a masters degree with 95% confidence and a margin of error of 3 percentage points. How...
Using the class sample data, analyze the student heights by completing the following. Please note the...
Using the class sample data, analyze the student heights by completing the following. Please note the following directions. The data below was collected from a group of 45 female students last semester. You will use this data throughout the semester on your lab assignments. Student # Gender Height Shoe Age Hand 1 F 68 8.5 20 R 2 F 60 5.5 27 R 3 F 64 7 31 R 4 F 67 7.5 19 R 5 F 65 8 20...
Show all of your work in each question. In parts (d), (e), and (g) make sure...
Show all of your work in each question. In parts (d), (e), and (g) make sure to set up your null and alternative hypotheses and write your conclusions. Also, please round your numbers to 2 decimal points. Write legibly and neatly. You can use p-value approach or critical-value approach in writing the conclusions of your hypotheses. A large firm employing tens of thousands of workers has been accused of discriminating against its female managers. The accusation is based on a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT