Identify the sampling technique used, and discuss potential sources of bias (if any). Explain.
A student asks 18 friends to participate in a psychology experiment.

Determine whether the statement is true or false. If it is false, rewrite it as a true statement.

More types of calculations can be performed with data at the nominal level than with data at the interval level.

Determine whether the data are qualitative or quantitative. Explain your reasoning.

Nationalities of passengers on a plane

Determine whether the data are qualitative or quantitative. Explain your reasoning.

Ages of dogs at a rescue facility

Determine whether the data are qualitative or quantitative. Explain your reasoning.

Response times for a customer service representative

Determine whether the data are qualitative or quantitative. Explain.

A list of debit card personal identification numbers

Determine the level of measurement of the data set. Explain your reasoning.

The horsepowers of racing car engines

Determine whether each number describes a population parameter or a sample statistic. Explain.

In a recent year, the average evidence-based reading and writing score on the SAT was 528. (Source: College Board)

What Would You Do? You work at a bank and are asked to recommend the amount of cash to put in an ATM each day. You do not want to put in too much (which would cause security concerns) or too little (which may create customer irritation). The daily withdrawals (in hundreds of dollars) for 30 days are listed. 72 84 61 76 104 76 86 92 80 88 98 76 97 82 84 67 70 81 82 89 74 73 86 81 85 78 82 80 91 83

If you put \$9000 in the ATM each day, what percent of the days in a month should you expect to run out of cash? Explain.