Question

Question 12 pts

(CO 1) A survey of 1272 pre-owned vehicle shoppers found that 8% bought the extended warranties. What is the population and what is the sample?

Group of answer choices

Population: pre-owned vehicle shoppers; Sample: the 8% that bought extended warranties

Population: 1272 pre-owned vehicle shoppers; Sample: the 8% that bought extended warranties

Population: pre-owned vehicle shoppers; Sample: 1272 pre-owned vehicle shoppers

Population: 1272 pre-owned vehicle shoppers; Sample: pre-owned vehicle shoppers

Question 22 pts

(CO 1) A survey of 481 of your customers shows that 79% of them like the recent changes to the product. Is this percentage a parameter or a statistic and why?

Group of answer choices

Parameter as it represents the population

Statistic as it represents the sample

Parameter as it represents the sample

Statistic as it represents the population

Question 32 pts

(CO 1) Classify the data of the number of customers at a restaurant.

Group of answer choices

Quantitative

Qualitative

Statistics

Classical

Question 42 pts

(CO 1) The data set that lists the temperatures in Albany, NY each day in the month of February would be classified as what type of data?

Group of answer choices

Ratio

Interval

Nominal

Ordinal

Question 52 pts

(CO 1) A data set that includes the number of products that were produced within each hour by a company would be classified as what type of data?

Group of answer choices

Ratio

Ordinal

Interval

Nominal

Question 62 pts

(CO 1) What type of data collection might be best to estimate the impact of exercise on longevity?

Group of answer choices

Observational

Experiment

Simulation

Survey

Question 72 pts

(CO 1) What type of data collection might be best to study how voters might decide an upcoming ballot issue?

Group of answer choices

Observational

Simulation

Survey

Experiment

Question 82 pts

(CO 1) You need to study the satisfaction of customers of a specific restaurant. You decide to randomly select a few tables and talk to everyone at those selected tables. This would most closely describe which type of sampling technique?

Group of answer choices

Stratified

Random

Systematic

Cluster

Question 92 pts

(CO 2) Which of the following graphs would be a line graph?

Group of answer choices

a

b

c

d

Question 102 pts

(CO 1) In a normally distributed data set of how long customers stay in your store, the mean is 44.8 minutes and the standard deviation is 2.6 minutes. Within what range would you expect 95% of your customers to stay in your store?

Group of answer choices

37.0-52.6

2.6-44.8

39.6-50.0

42.2-47.4

Question 112 pts

(CO 1) Which of the following graphs would be considered a uniform distribution?

Group of answer choices

a

b

c

d

Question 122 pts

(CO 1) In a normally distributed data set with a mean of 19 and a standard deviation of 2.6, what percentage of the data would be between 13.8 and 24.2?

Group of answer choices

68% based on the Empirical Rule

95% based on the Empirical Rule

68% based on the histogram

95% based on the histogram

Question 132 pts

(CO 1) Which of the following would be the standard deviation for this sample data set: 5, 7, 6, 9, 6, 4, 4, 6, 5, 9, 3?

Group of answer choices

1.94

2.91

1.85

5.82

Question 142 pts

(CO 1) What would be the mean of this data set: 8, 9, 7, 508, 7, 1, 5, 8, 1?

Group of answer choices

61.6

50.8

33.8

5.8

Question 152 pts

(CO 1) A researcher wants to study the effects of playing video games 24-7 for a week. What type of study would be best suited to make this determination?

Group of answer choices

Experimental

Simulation

Survey

Observational

Question 162 pts

(CO 1) To gather information on customer satisfaction, a researcher goes into several stores and interviews randomly selected customers. This sampling technique is called:

Group of answer choices

Convenience

Stratified

Random

Cluster

Question 172 pts

(CO 1) What is the standard deviation and its meaning given this population of customer ages? 45, 76, 30, 22, 24, 40, 63, 66, 27

Group of answer choices

18.1 which means that many of the ages will be within this value of the average age

19.2 which means that many of the ages will be within this value of the average age

19.2 which means that many of the ages will be around the square of this value

18.1 which means that many of the ages will be around this value

Question 182 pts

(CO 1) What is the mode of the following data set?

2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8

Group of answer choices

no mode

2, 3, 4, 5, 6, 7, and 8

2

2, 4, 5, and 7

Answer 1