QNT 351 Week 2 MyStat Lab

QNT 351 Week 2 MyStat Lab

1.Choose the correct answer bellow:

2. Explain the difference between qualitative and quantitative data

3. Explain how populations and variables differ. Choose the correct answer bellow:

4. Define statistical thinking. Choose the correct answer bellow:

5. Suppose you’re given a data set that classifies each sample unit into one of four categories: A,B,C or D. You plan to create a computer database consisting of these data, and you decide to code the data as A=, B=, C=3, and D=4. Are the data consisting of the classifications A, B, C, and D qualitative or quantitative? After the data are input as 1, 2, 3, or 4, are they qualitative or quantitative?

6. A company tracked all credit card purchases during the year 2005 and measured two variables: (1) the cardholder’s town of residence, and (2) the amount (in dollars) of each monthly payment

a. identify the type (qualitative or quantitative) of each variable measured

b. does the data set collected represent a population or a sample?

7. Identify each of the following variables as qualitative or quantitative

a. college major

b. distance of commute to work

c. number of pets in a family

d. natural hair color

8. Identify each of the following variables as qualitative or quantitative

a. Eye color

b. Number of brothers and sisters

c. Size of home

d. Political party preference

9. A company surveyed a random sample of 10,000 employees in the region. One question the asked was, “ If your employer provides you with mentoring opportunities are you likely to remain in your job for the next five years?” The found that 730 members of the sample said yes.

a. Identify the population of interest in the company

b. Based on the question posed by the company what is the variable of interest?

c. Is the variable quantitative or qualitative?

d. Describe the sample

10. Identify each of the following variables as qualitative or quantitative

• Amount one paid on taxes
• Storage space on a computer drive
• Nationality
• Favorite baby name