4. Researchers believed that floral scent can sometimes improve a person's learning ability. They set up an experiment in which each of 22 subjects completed sets of mazes. Each subject wore a floral-scented mask and an unscented mask in random order. The researchers measured the time to complete the sets of mazes.

What is the explanatory variable (factor)?

The amount of scent. Presence or absence of the floral scent. Time to complete the pencil and paper mazes. Whether the subject was able to complete the mazes quicker while wearing the floral scented mask.

Passport video produced a video documentary titled the definitive elvis, comprising sixteen one-hour episodes. the producers interviewed more than 200 people regarding virtually all aspects of elvis's life. passport sold the videos commercially for a profit. approximately 5 to 10 percent of the videos were composed of copyrighted music and appearances of presley on television and in movies owned by copyright holders other than passport. passport did not obtain permission to use those copyrighted works. elvis presley enterprises, inc., and other companies and individuals that owned copyrights to the presley works used by passport sued passport for copyright infringement. passport defended, arguing that its use of the copyrighted materials was fair use. the u.s. district court held in favor of the plaintiff copyright holders and enjoined passport from further distribution of its documentary videos. passport appealed.did passport act ethically in including the elvis presley copyrighted material in its video? why do you think passport video did so? has there been fair use in this case, or has there been copyright infringement?

Janette goes into an electronics superstore to buy a new computer. the salesperson works with her to find the right model, and she agrees to buy a new computer for $500 and a floor-model 18-inch monitor for $100. just when she is ready to pay, the salesperson walks away for a minute and then comes back to inform her that the monitor she was ready to purchase can't be sold for < $125. she agrees to the extra $25 even though they had initially agreed on the $100 selling price. janette has fallen for the technique of gaining compliance.

Karin bought illegal firearms at a gun show. at her trial, she alleged that she had committed this crime because her boyfriend had threatened to harm her and her two daughters if she did not. her lawyer asked the judge to instruct the jury that the prosecution had an obligation to prove beyond a reasonable doubt that karin had acted freely. instead, the judge told the jury that karin had the burden of proving duress by a preponderance of the evidence. who is correct?