Filters
Question type
Study Flashcards

Which is not an analytical method commonly used to improve business decisions?


A) Descriptive analytics.
B) Predictive analytics.
C) Prescriptive analytics.
D) Reactive analytics.

Correct Answer

verifed

verified

A business data analyst needs a Ph.D.in statistics.

Correct Answer

verifed

verified

Empirical data are collected through observations and/or experiments.

Correct Answer

verifed

verified

An example of descriptive statistics would be reporting the percentage of students in your accounting class that attended the review session for the last exam.

Correct Answer

verifed

verified

A good data analyst


A) removes data if so instructed by client.
B) works alone to avoid team conflicts.
C) communicates with numbers rather than with graphs.
D) reports findings that may contradict client's ideas.

Correct Answer

verifed

verified

Bob said,"Why study math and statistics? I'm majoring in human resources because it's people that are important in business,not numbers." Argue both for and against Bob's statement.

Correct Answer

verifed

verified

Bob is correct in that organizations con...

View Answer

"Circulation fell in the month after the new editor took over the newspaper Oxnard News Herald.The new editor should be fired." Which is not a serious fallacy in this conclusion?


A) Generalizing from a small sample
B) Applying post hoc reasoning
C) Failing to identify causes
D) Using a biased sample

Correct Answer

verifed

verified

A statistical test may be significant yet have no practical importance.

Correct Answer

verifed

verified

Surveying electric vehicle owners would provide a representative random sample of Americans' views on global warming policies.

Correct Answer

verifed

verified

Statistics helps surmount language barriers to solve problems in multinational businesses.

Correct Answer

verifed

verified

Which best illustrates the distinction between statistical significance and practical importance?


A) "In 2016,240 out of 400 statistics students at Oxnard Technical College sold their textbooks at the end of the semester,compared with 220 out of 330 students in 2015,a significant decrease."
B) "Our new manufacturing technique has increased the life of the 80 GB USB AsimoDrive external hard disk significantly,from 240,000 hours to 250,000 hours."
C) "In 50,000 births,the new vaccine reduced the incidence of infant mortality in Morrovia significantly from 14.2 deaths per 1,000 births to 10.3 deaths per 1,000 births."
D) "The new Sky Penetrator IV business jet's cruising range has increased significantly from 3,975 miles to 4,000 miles."

Correct Answer

verifed

verified

Inferential statistics refers to generalizing from a sample to a population,estimating unknown parameters,drawing conclusions,and making decisions.

Correct Answer

verifed

verified

"Smoking is not harmful.My Aunt Harriet smoked,but lived to age 90." This best illustrates which fallacy?


A) Unconscious bias
B) Significance versus practical importance
C) Post hoc reasoning
D) Small sample generalization

Correct Answer

verifed

verified

Business intelligence refers to collecting,storing,accessing,and analyzing data on the company's operations in order to make better business decisions.

Correct Answer

verifed

verified

Showing 41 - 54 of 54

Related Exams

Exam 2

Data Collection

113 Questions

Exam 3

Describing Data Visually

108 Questions

Exam 4

Descriptive Statistics

156 Questions

Exam 5

Probability

114 Questions

Exam 6

Discrete Probability Distributions

111 Questions

Exam 7

Continuous Probability Distributions

114 Questions

Exam 8

Sampling Distributions and Estimation

107 Questions

Exam 9

One-Sample Hypothesis Tests

135 Questions

Exam 10

Two-Sample Hypothesis Tests

116 Questions

Exam 11

Analysis of Variance

95 Questions

Exam 12

Simple Regression

141 Questions

Exam 13

Multiple Regression

133 Questions

Exam 14

Chi-Square Tests

95 Questions

Show Answer