frq styled answer please 1. Does ginkgo improve memory? The law allowsmarketers of herbs and other naturalsubstances to make health claims that are notsupported by evidence. Brands of ginkgoextract claim to "improve memory andconcentration." A randomized comparativeexperiment found no statistically significantevidence for such effects. The subjects were350 healthy volunteers over 60 years old.They were randomly assigned to ginkgo or aplacebo pill (a dummy pill that looks andtastes the same). All the subjects took abattery of tests for learning and memorybefore treatment started and again after sixweeks.A. If the results were statistically significant,can the results of this study be generalizedto a larger population? Can cause-and-effect be inferred? Explain.B. Explain why it is advantageous to use 350volunteers in this study, rather than, say,30 volunteers.C. Name a confounding variable that wascontrolled in this experiment and explainwhy it was beneficial to control thatvariable.

Name: frq styled answer please 1. Does ginkgo improve memory? The law allows
Uploaded: 2024-03-20T07:07:37.000Z
Channel: Bartleby
Description: frq styled answer please 1. Does ginkgo improve memory? The law allowsmarketers of herbs and other naturalsubstances to make health claims that are notsupported by evidence. Brands of ginkgoextract claim to "improve memory andconcentration." A random