Questions from Business Statistics

Q: The website www.nobelprize.org allows you to look up

The website www.nobelprize.org allows you to look up all the Nobel prizes awarded in any year. The data are not listed in a table. Rather you drag a slider to the year and see a list of the awardees f...

Q: The National Center for Health Statistics (NCHS) conducts an extensive

The National Center for Health Statistics (NCHS) conducts an extensive survey consisting of an interview and medical examination with a representative sample of about 5000 people a year. The interview...

Q: Facebook uploads more than 350 million photos every day onto its servers

Facebook uploads more than 350 million photos every day onto its servers. For this collection, describe the Who and the What.

Q: Clarksburg Bakery is trying to predict how many loaves to bake.

Clarksburg Bakery is trying to predict how many loaves to bake. In the past 100 days, they have sold between 95 and 140 loaves per day. Here is a histogram of the number of loaves they sold for the pa...

Q: How fast do horses run? Kentucky Derby winners run well over

How fast do horses run? Kentucky Derby winners run well over 30 miles per hour, as shown in this graph. The graph shows the percentage of Derby winners that have run slower than each given speed. Note...

Q: Public relations staff members at State U phoned 850 local residents.

Public relations staff members at State U phoned 850 local residents. After identifying themselves, the callers asked the survey participants their ages, whether they had attended college, and whether...

Q: Based on long-term investigation, researchers have suggested that the

Based on long-term investigation, researchers have suggested that the acidity (pH) of rainfall in the Shenandoah Mountains can be described by the Normal model N(4.9,0.6). 1. Draw and carefully label...

Q: A credit card bank is investigating the incidence of fraudulent card use

A credit card bank is investigating the incidence of fraudulent card use. The bank suspects that the type of product bought may provide clues to the fraud. To examine this situation, the bank looks at...

Q: As part of the course work, a class at an upstate

As part of the course work, a class at an upstate NY college collects data on streams each year. Students record a number of biological, chemical, and physical variables, including the stream name, th...

Q: One Thursday, researchers gave students enrolled in a section of basic

One Thursday, researchers gave students enrolled in a section of basic Spanish a set of 50 new vocabulary words to memorize. On Friday, the students took a vocabulary test. When they returned to class...