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Which method of collecting data is this? Selecting groups of people to collect data from instead of one person at a time.  

Imagine your lab instructor hands you a microscope slide with a sample of onion root tip, explaining that these cells are undergoing rapid cell division. Your lab partner asks if the cell division is mitosis or meiosis. What should you answer?

A computer repair business is using a Chi-square Goodness of Fit test to determine if the percentage of customers is the same in five different areas.  

Is the following column of data considered quantitative or categorical? Number of cups of water you drink per day. 3 5 2 1 7 4 2 5 8 10 3 6 1 0 8 4 5

In the late 1960s, a shareholder of the company that owned the Chicago Cubs baseball team sued the company because the directors refused to install lights in Wrigley Field. The court decided that the directors

Do the answers to the following question result categorical data or quantitative data? How many meters do you walk per day on average?

Which of the following is the correct conclusion for the hypothesis test?  Assume the sample data met all of the assumptions. P-value = 0.094 Significance Level = 0.05 Claim:  Alternative Hypothesis  

Do the answers to the following question result categorical data or quantitative data? What is your favorite vegetable?

Suppose a statistician wants to see if there is a relationship between the number of miles a person drives to work and the monthly salary of that person.  What type of hypothesis test should they do?

HIV, the virus that causes AIDS, has a genome made of RNA instead of DNA. HIV contains an enzyme called reverse transcriptase that uses the RNA genome as a template to create a DNA copy of the viral genome after infecting a host cell. That DNA is then incorporated into the genome of the host cell, and the host cell machinery is used to make more HIV RNA and proteins. Cells that are not infected by HIV do not contain reverse transcriptase. The drug zidovudine, better known as AZT, is used to treat HIV infection. Although HIV multiplies by creating DNA copies, AZT doesn’t seem to affect other cells in the body that do DNA replication and divide but aren’t infected with HIV. Which hypothesis most likely explains this observation?