GMAT Statistical / Sampling practice questions

Customers who prioritize price tend to purchase fewer items per transaction.

The company's market research department has accurately predicted customer trends for the past five years.

Only 5% of the company's customer base was included in the survey.

The survey included only customers who made purchases during discount periods.

A new competitor has entered the market with significantly lower prices but inferior quality.

Parents of students in the program volunteer their time to assist with administrative tasks.

Students who attend tutoring sessions often report feeling more confident about their academic abilities.

Teachers in the district are required to attend monthly training sessions on student engagement.

The 'significant improvement' cited refers only to homework completion rates, not test scores or grades.

The school district's budget for extracurricular activities has increased by 15% this year.

Streaming quality has improved significantly due to advances in compression technology.

Market research indicates that consumers prefer streaming services with larger content libraries.

The 40% increase in usage was measured over a holiday period when consumers typically spend more time streaming content.

The company's main competitor recently lowered its subscription price by 15%.

The survey only included responses from urban consumers, who tend to adopt new technologies faster than rural populations.

The regulations would require companies to purchase expensive new equipment.

The regulations will lead to increased costs for businesses, which will likely result in higher prices for consumers.

Other countries with similar regulations have seen no measurable improvement in air quality.

The regulations' projected benefits are based on outdated pollution data from five years ago.

Some environmental groups oppose the regulations because they don't go far enough.

Rural communities will face 68% of compliance costs while receiving only 12% of the health benefits.

The analysis uses industry-reported compliance cost data without independent verification, though industry groups have a history of underestimating compliance costs.

The projected health benefits include reduced absenteeism that would primarily benefit large employers rather than the general population.

Environmental groups claim the regulations should also cover agricultural emissions sources, though these sources account for less than 10% of total emissions.

The cost estimates assume manufacturers will pass only 50% of compliance costs to consumers, while independent studies suggest the actual pass-through rate is 90%.