Questions from Business Statistics

Q: Do people who work for non-profit organizations differ from those

Do people who work for non-profit organizations differ from those who work at for-profit companies when it comes to personal job satisfaction? Separate random samples were collected by a polling agenc...

Q: The information in Exercise 1 was used to create a 95%

The information in Exercise 1 was used to create a 95% two-proportion confidence interval for the difference between Canadians and U.S. citizens who were born in foreign countries. Interpret this inte...

Q: The researchers from Exercise 2 created a 95% two-proportion

The researchers from Exercise 2 created a 95% two-proportion confidence interval for the difference in those who are highly satisfied when comparing people who work at non-profits to people who work a...

Q: For the interval given in Exercise 3 , explain what 95%

For the interval given in Exercise 3 , explain what 95% confidence means.

Q: For the interval given in Exercise 4 , explain what 95%

For the interval given in Exercise 4 , explain what 95% confidence means.

Q: If the information in Exercise 1 is to be used to make

If the information in Exercise 1 is to be used to make inferences about the proportion all Canadians and all U.S. citizens born in other countries, what conditions must be met before proceeding? Are t...

Q: If the information in Exercise 2 is to be used to make

If the information in Exercise 2 is to be used to make inferences about all people who work at non-profits and for-profit companies, what conditions must be met before proceeding? List them and explai...

Q: Ozone levels (in parts per billion, ppb) were recorded

Ozone levels (in parts per billion, ppb) were recorded at sites in New Jersey monthly between 1926 and 1971. Here are boxplots of the data for each month (over the 46 years), lined up in order (Januar...

Q: The researchers from Exercise 1 want to test if the proportions of

The researchers from Exercise 1 want to test if the proportions of foreign born are the same in the United States and Canada. What is the appropriate standard error to use for the hypothesis test? 1....

Q: Which of the following scenarios should be analyzed as paired data?

Which of the following scenarios should be analyzed as paired data? 1. Students take an MCAT prep course. Their before and after scores are compared. 2. 20 male and 20 female students in class take a...