QNT 351 Week 1 Connect Problem Set | eBooks | Education

QNT 351 Week 1 Connect Problem Set

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1.

Which of the following is an example of a continuous variable?

Tons of concrete to complete a parking garage

Number of students in a statistics class

Zip codes of shoppers

Rankings of baseball teams in a league

 

2.

The incomes of 50 loan applicants are obtained. Which level of measurement is income?

Nominal

Ordinal

Interval

Ratio

 

 

3.

The members of each basketball team wear numbers on their jerseys. What scale of measurement are these numbers considered?

Nominal

Ordinal

Interval

Ratio

 

4

The reported unemployment is 5.5% of the population. What measurement scale is used to measure unemployment?

Nominal

Ordinal

Interval or ratio

Descriptive

5.

The Nielsen Ratings break down the number of people watching a particular television show by age. What level of measurement is age?

Nominal

Ordinal

Interval

Ratio

6.

 

An example of a qualitative variable is _________________.

Number of children in a family

Weight of a person

Color of ink in a pen

Miles between oil changes

7.

 

Two thousand one hundred and forty frequent business travelers are asked which midwestern city they prefer: Indianapolis, Saint Louis, Chicago, or Milwaukee. 180 liked Indianapolis best, 460 liked Saint Louis, 1240 liked Chicago, and the remainder preferred Milwaukee. Develop a frequency table and a relative frequency table to summarize this information. (Round relative frequency to 3 decimal places.)

 

 

 

 

  City Frequency Relative Frequency
  Indianapolis  
  St. Louis  
  Chicago  
  Milwaukee  
 

 

 

8.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Cambridge Power and Light Company selected a random sample of 20 residential customers. Following are the amounts, to the nearest dollar, the customers were charged for electrical service last month:
 

 

 

 

 

9.

 

 

 

 

 

Consider these five values a population: 6, 3, 5, 3, and 6.

 

a. Determine the mean of the population. (Round your answer to 1 decimal place.)

 

 

 

 

 

 

 

 

 

 

b. Determine the variance of the population. (Round your answer to 2 decimal places.)

 

 

10.

 

 

An investor buys 100 shares of AT&T stock and records its price change daily. Which concept of probability would you use to estimate the probability of an individual event?

 

 

Probability of an individual event

 

Empirical

Classical

https://uoptutorialstore.com/category/qnt-351/ 1. Which of the following is an example of a continuous variable? Tons of concrete to complete a parking garage Number of students in a statistics class Zip codes of shoppers Rankings of b
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