Questions from Statistics

Q: Refer to exercise 12.43. How could you investigate whether

Refer to exercise 12.43. How could you investigate whether participation in a Yoga and Meditation based Lifestyle Intervention (YMLI) caused the improved cellular biomarkers associated in this study?...

Q: Refer to exercise 12.44. How could you investigate whether

Refer to exercise 12.44. How could you investigate whether consuming fish at least two times per week causes decreased disease activity in rheumatoid arthritis patients? Describe the design of a study...

Q: In a 2017 study published at PLOS.org, researchers investigated

In a 2017 study published at PLOS.org, researchers investigated the effect of music on creativity (Ritter and Ferguson 2017). Subjects were recruited for the study using an online research participati...

Q: The Perry Preschool Project discussed in exercises 10.39 to 10

The Perry Preschool Project discussed in exercises 10.39 to 10.41 found that 8 of the 58 students who attended preschool had at least one felony arrest by age 40 and that 31 of the 65 students who did...

Q: In Montreal, Canada, an experiment was done with parents of

In Montreal, Canada, an experiment was done with parents of children who were thought to have a high risk of committing crimes when they became teenagers (Tremblay et al., 1996). Some of the families...

Q: The 3-year recidivism rate in the United States is about

The 3-year recidivism rate in the United States is about 68%, which means that 68% of released U.S. prisoners return to prison within 3 years of release. There have been many attempts to reduce the re...

Q: According to the National Institute of Mental Health, Social Anxiety Disorder

According to the National Institute of Mental Health, Social Anxiety Disorder (SAD) is a mental health disorder that affects up to 7% of the population of the United States. Because many SAD patients...

Q: An 2017 NPR/Marist poll asked a random sample of Americans

An 2017 NPR/Marist poll asked a random sample of Americans if they had personally experienced sexual harassment in the workplace. The results are shown in the following table. a. Find the percentage i...

Q: Three million people in Sweden are trained in CPR, which is

Three million people in Sweden are trained in CPR, which is more than 30% of the population. The data set is summarized below. A 2015 study by Hasselqvist-Ax et. al reported in the New England Journal...

Q: Random samples of 12th-grade students from California, Utah,

Random samples of 12th-grade students from California, Utah, and New York were asked how long it took them to get to school (in minutes). StatCrunch output for an ANOVA is shown, along with the Tukey...