Questions from Statistics

Q: Define and distinguish between positive correlation, negative correlation, and no

Define and distinguish between positive correlation, negative correlation, and no correlation. Give an example of each type of correlation

Q: I created a scatterplot of CEO salaries and corporate revenue for 10

I created a scatterplot of CEO salaries and corporate revenue for 10 companies and found a negative correlation, but when I left out a data point for a company whose CEO took no salary, there was no c...

Q: If a scatterplot shows no correlation, then there cannot be any

If a scatterplot shows no correlation, then there cannot be any relationship between the two variables.

Q: A study showed that for one town, as the stork population

A study showed that for one town, as the stork population increased, the number of human births in the town also increased. It therefore follows that the increase in the stork population caused the nu...

Q: The correlation I found was so strong that a careful calculation showed

The correlation I found was so strong that a careful calculation showed it had less than a 1 in 100,000 probability of occurring by chance. Therefore, I can reasonably conclude that one variable is th...

Q: In one state, the number of unregistered handguns steadily increased over

In one state, the number of unregistered handguns steadily increased over the past several years, and the crime rate increased as well.

Q: One study showed that there is a correlation between per capita cheese

One study showed that there is a correlation between per capita cheese consumption and number of people who die by becoming tangled in their bedsheets. One variable increased while the other decreased...

Q: Statistics students find that as they spend more time studying, their

Statistics students find that as they spend more time studying, their test scores are higher

Q: For the hypothesis test described in Exercise 1, which of the

For the hypothesis test described in Exercise 1, which of the following distributions is most appropriate? a. normal distribution b. t distribution c. chi-square distribution d. uniform distribution...

Q: Data from the National Vital Statistics Reports and the U.S

Data from the National Vital Statistics Reports and the U.S. Department of Agriculture show that over the past several years in Maine, the divorce rate declined and per capita margarine consumption al...