.png){kind=logo}
Name: Class: Date: Chapter 1 Copyright Cengage Learning. Poweredby Cognero.Page 1 1.Data may be classified by one of the four levels of measurement. What is the name of the lowest level?
- interval
- nominal
- ordinal
- ratio
- simple
ANSWER: b
2.Identify the variable in the information below.The archeological site of Tara is more than 4000 years old. Tradition states that Tara was the seat of the high kings of Ireland. Because of its archeological importance, Tara has received extensive study (Reference: Tara: An Archeological survey by Conor Newman, Royal Irish Academy, Dublin). Suppose an archeologist wants to estimate the density of ferromagnetic artifacts in the Tara region. For this purpose, a random sample of 55 plots, each of size 100 square meters, is used. The number of ferromagnetic artifacts for each plot is determined.
- number of plots
- size of the plots
- none of these choices
- number of ferromagnetic artifacts per 100 square meters
- density of ferromagnetic artifacts
ANSWER: d
3.Identify whether the variable in the information below is qualitative or quantitative.USA Today reported that 44.9% of those surveyed (1261 adults) ate in a fast-food restaurant from one to three times each week.
- qualitative
- quantitative
- neither qualitative nor quantitative
- qualitative as well as quantitative
- Information does not have any variable.
ANSWER: a
4.Identify the implied population in the information below.The archeological site of Tara is more than 4000 years old. Tradition states that Tara was the seat of the high kings of Ireland. Because of its archeological importance, Tara has received extensive study (Reference: Tara: An Archeological survey by Conor Newman, Royal Irish Academy, Dublin). Suppose an archeologist wants to estimate the density of ferromagnetic artifacts in the Tara region. For this purpose, a random sample of 55 plots, each of size 100 square meters, is used. The number of ferromagnetic artifacts for each plot is determined. The variable in this information is number of ferromagnetic artifacts per 100 square meters.
- number of ferromagnetic artifacts per 100-square-meters
Understandable Statistics, 13e Charles Brase, Corrinne Brase, James Seibert, Jason Dolor (Test Bank All Chapters, 100% Original Verified, A+ Grade) 1 / 4
Name:
Class:
Date:
Chapter 1
Copyright Cengage Learning. Powered by Cognero. Page 2
- density of ferromagnetic artifacts in some of the plots
- none of these choices
- all plots in the Tara region
- number of ferromagnetic artifacts per 100-square-meters in some plots in the Tara region
ANSWER: d
- Identify whether the variable in the information below is qualitative or quantitative.
- quantitative
- qualitative
- neither qualitative nor quantitative
- qualitative as well as quantitative
- none of these choices
The archeological site of Tara is more than 4000 years old. Tradition states that Tara was the seat of the high kings of Ireland. Because of its archeological importance, Tara has received extensive study (Reference: Tara: An Archeological survey by Conor Newman, Royal Irish Academy, Dublin). Suppose an archeologist wants to estimate the density of ferromagnetic artifacts in the Tara region. For this purpose, a random sample of 55 plots, each of size 100 square meters, is used. The number of ferromagnetic artifacts for each plot is determined. The variable in this information is number of ferromagnetic artifacts per 100 square meters.
ANSWER: a
- Identify the level of measurement corresponding to the data "Cost of rod and reel" associated with fishing.
- interval
- none of these choices
- ratio
- nominal
- ordinal
ANSWER: c
- Use a random-number table to get a list of 6 random numbers between 1 and 9 beginning at row 4, block 4.
65321 85623 10204 50218 20321 22315
98532 91972 39800 45670 20510 11451
92012 59826 35456 79289 91483 29754
45652 98653 45863 36963 15326 78952
45678 10100 91251 37041 13712 14672
- 1 6 9 5 2 8
- 3 6 9 1 5 7
- 3 6 9 1 5 2
- 1 6 9 1 5 2
- 3 6 9 1 6 2 2 / 4
Name:
Class:
Date:
Chapter 1
Copyright Cengage Learning. Powered by Cognero. Page 3
ANSWER: c
- Use a random-number table to simulate the outcomes of tossing a quarter 12 times beginning at row 1, block
- Assume that the quarter is balanced (i.e., fair) and an even digit is assigned to the outcome heads (H) and an
odd digit to the outcome tails (T).
65321 85623 10204 50218 20321 22315
98532 91972 39800 45670 20510 10451
92012 59826 35456 79289 91483 29754
45652 98653 45863 36963 15326 78952
45678 10100 91251 37041 13712 14672
- T H H T H H H T H H H H
- T H H T H H H T H T H T
- T H H T H H H T H T T H
- T H H T H H H H H T H H
- T H H T H H H T H T H H
ANSWER: e
- Identify the sampling technique used in the following information.
- Systematic sample
- Convenience sample
- Stratified sample
- Cluster sample
- Simple random sample
An important part of employee compensation is a benefits package that might include health insurance, life insurance, child care, vacation days, retirement plan, parental leave, bonuses, etc. Suppose you want to conduct a survey of benefits packages available in private businesses in Hawaii. You want a sample size of 100.Sampling technique used to get the sample size of 100 is described below.Group the businesses according to type: medical, shipping, retail, manufacturing, financial, construction, restaurant, hotel, tourism, other. Then select a random sample of 10 businesses from each sample type.
ANSWER: c
- Find the technique for gathering data in the study below.
- observational study
- experiment
- census
- sampling
- none of these choices
The Colorado Division of Wildlife imposed special fishing regulations on the Deckers section of the South Platte River. All trout under 15 inches had to be released. A study of trout before and after the regulations went into effect showed that the average length of trout increased by 4.2 inches after the new regulations.
ANSWER: b
- / 4
Name:
Class:
Date:
Chapter 1
Copyright Cengage Learning. Powered by Cognero. Page 4
- Find the technique for gathering data in the study below.
- census
- sampling
- simulation
- experiment
- none of these choices
An analysis of a sample of 31,000 patients from New York hospitals suggests that the poor and the elderly sue for malpractice at one-fifth the rate of wealthier patients (Journal of the Medical Association).
ANSWER: b
- / 4
.png)