Spring A 2026 MATH.40.HSF2: Week 1: Statistics Quiz

Week 1: Statistics Quiz Study Guide

The process of using data collected from a small group to reach conclusions about a large group is called

The collection and summarization of the socioeconomic and physical characteristics of the employees of a particular firm is an example of

Most analysts focus on the cost of tuition as the way to measure the cost of a college education. But incidentals, such as textbook costs, are rarely considered. A researcher at Drummand University wishes to estimate the textbook costs of first‑year students at Drummand. To do so, she monitored the textbook cost of 250 first‑year students and found that their average textbook cost was $600 per semester. Identify the variable of interest to the researcher.

True or False: Managers need an understanding of statistics to be able to present and describe information accurately, draw conclusions about large populations based on small samples, improve processes, and make reliable forecasts.

True or False: Using the number of registered voters who turned out to vote for the primary in Iowa to predict the number of registered voters who will turn out to vote in Vermont’s primary is an example of descriptive statistics.

True or False: Business analytics combine traditional statistical methods with methods and techniques from management science and information systems to form an interdisciplinary tool that supports fact-based management decision making.

True or False: In the current data-driven environment of business, the decisions you make will be increasingly based on gut or intuition supported by personal experience.

To monitor campus security, the campus police office is taking a survey of the number of students in a parking lot each 30 minutes of a 24-hour period with the goal of determining when patrols of the lot would serve the most students. If X is the number of students in the lot each period of time, then X is an example of

Researchers are concerned that the weight of the average American school child is increasing implying, among other things, that children’s clothing should be manufactured and marketed in larger sizes. If X is the weight of school children sampled in a nationwide study, then X is an example of

The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products. The population of interest is

all the customers who have ever bought a Blu-ray player made by the company.
all the customers who have used a Blu-ray player over the past 12 months.
all the customers who have bought a Blu-ray player made by the company and brought it in for repair over the past 12 months.
all the customers who have bought a Blu-ray player made by the company over the past 12 months.

The evening host of a dinner dance reached into a bowl, mixed all the tickets around, and selected the ticket to award the grand door prize. What sampling method was used?

The Dean of Students mailed a survey to a total of 400 students. The sample included 100 students randomly selected from each of the freshman, sophomore, junior, and senior classes on campus last term. What sampling method was used?

A telemarketer set the company’s computerized dialing system to contact every 25th person listed in the local telephone directory. What sampling method was used?

True or False: Sampling error can be completely eliminated by taking larger sample sizes.

Week 1 Quiz

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