Questions from Business Statistics

Q: According to the U.S. American Community Survey (ACS

According to the U.S. American Community Survey (ACS), by 2014, for the first time in the history of the ACS, more U.S. 18- to 34-year-olds reported living with a parent than were living independently...

Q: A newspaper article that reported the results of an election poll included

A newspaper article that reported the results of an election poll included the following explanation: The Associated Press poll on the 2016 presidential campaign is based on telephone interviews with...

Q: One of the important issues for poultry farmers is the production rate

One of the important issues for poultry farmers is the production rate the percentage of days on which a given hen actually lays an egg. Ideally, that would be 100% (an egg every day), but realistical...

Q: Organizers of a fishing tournament believe that the lake holds a sizable

Organizers of a fishing tournament believe that the lake holds a sizable population of largemouth bass. They assume that the weights of these fish have a model that is skewed to the right with a mean...

Q: Here are the summary statistics for the weekly payroll of a small

Here are the summary statistics for the weekly payroll of a small company: lowest salary=$300, mean salary=$700, median=$500, range=$1200, IQR=$600, first quartile=$350, standard deviation=$400. 1. Do...

Q: A Rutgers University study found that many high school students cheat on

A Rutgers University study found that many high school students cheat on tests. The researchers surveyed a random sample of 4500 high school students nationwide; 74% of them said they had cheated at l...

Q: Neurological research has shown that in about 80% of people language

Neurological research has shown that in about 80% of people language abilities reside in the brain left side. Another 10% display right-brain language centers, and the remaining 10% have two-sided lan...

Q: The 2014 U.S. Religious Landscape Study interviewed more than

The 2014 U.S. Religious Landscape Study interviewed more than 35,000 Americans from all 50 states about their beliefs and the role of religion in their lives. The fastest-growing group is the 22.8% wh...

Q: The Centers for Disease Control and Prevention reports that 9.3

The Centers for Disease Control and Prevention reports that 9.3% of surveyed high school students reported in 2015 that they had smoked cigarettes in the past 30 days. A college has 522 students in it...

Q: Growing concern about binge drinking among college students has prompted one large

Growing concern about binge drinking among college students has prompted one large state university to conduct a survey to assess the size of the problem on its campus. The university plans to randoml...