/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 55 Oils and inflammation The extrac... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 4: Q. 55 (page 263)

Oils and inflammation The extracts of avocado and soybean oils have been shown to slow cell inflammation in test tubes. Will taking avocado and soybean unsaponifiables (called ASU) help relieve pain for subjects with joint stiffness due to arthritis? In an experiment, 345 men and women were randomly assigned to receive either

300 milligrams of ASU daily for three years or a placebo daily for three years.

Explain why it was necessary to include a control group in this experiment.

Short Answer

Expert verified

Taking avocado and soybean unsaponifiables (called ASU) help relieve pain for subjects with joint stiffness due to arthritis will work

It was necessary to include a control group in this experiment because its effectiveness decrease with time.

Step by step solution

01

Given information

We need to find that why it was necessary to include a control group in this experiment.

02

Explanation

Avocado soy unsaponifiables consist of chemical compounds like nutrition E, plant fats, and others. The aggregate of those chemical compounds appears to lessen swelling withinside the joints and different locations withinside the body. So ,taking avocado and soybean unsaponifiables (referred to as ASU) assist relieve ache for topics with joint stiffness because of arthritis

Control institution is essential because Avocado/soybean unsaponifiable oil (ASU) may also modestly enhance ache and capability in knee and hip OA withinside the brief term (2-three months) however does now no longer appear to hold this advantage over the lengthy term (2-three years).

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Sampling the forestTo gather data on a 1200-acre pine forest in Louisiana, the U.S. Forest Service laid a grid of 1410equally spaced circular plots over a map of the forest. A ground survey visited a sample of 10%of the plots.

a. Explain how you would use a random number generator to choose an SRS of 141plots. Your description should be clear enough for a classmate to carry out your plan.

b. Use your method from part (a) to choose the first 3plots.

Kissing the right way According to a newspaper article, 鈥淢ost people are kissing the

鈥榬ight way.鈥欌�� That is, according to a study, the majority of couples prefer to tilt their heads

to the right when kissing. In the study, a researcher observed a random sample of124

kissing couples and found that 8312466.9%of the couples tilted to the right. To

determine if these data provide convincing evidence that couples are more likely to tilt

their heads to the right, 100simulated SRSs were selected.

Each dot in the graph shows the number of couples that tilt to the right in a simulated SRS

of124couples, assuming that each couple has a 50%chance of tilting to the right.

a. Explain how the graph illustrates the concept of sampling variability.

b. Based on the data from the study and the results of the simulation, is there convincing

evidence that couples prefer to kiss the 鈥渞ight way鈥�? Explain your answer.

Tonya wanted to estimate the average amount of time that students at her school spend on Facebook each day. She gets an alphabetical roster of students in the school from the registrar鈥檚 office and numbers the students from 1 to 1137. Then Tonya uses a random number generator to pick 30 distinct labels from 1 to 1137. She surveys those 30 students about their Facebook use. Tonya鈥檚 sample is a simple random sample because

a. it was selected using a chance process.

b. it gave every individual the same chance to be selected.

c. it gave every possible sample of size 30 an equal chance to be selected.

d. it doesn鈥檛 involve strata or clusters.

e. it is guaranteed to be representative of the population.

Layoffs and 鈥渟urvivor guilt鈥� Workers who survive a layoff of other employees at their location may suffer from 鈥渟urvivor guilt.鈥� A study of survivor guilt and its effects used as subjects 120students who were offered an opportunity to earn extra course credit by doing proofreading. Each subject worked in the same cubicle as another student, who was an accomplice of the experimenters. At a break midway through the work, one of three things happened:

Treatment 1: The accomplice was told to leave; it was explained that this was because she performed poorly.

Treatment 2: It was explained that unforeseen circumstances meant there was only enough work for one person. By 鈥渃hance,鈥� the accomplice was chosen to be laid off.

Treatment 3: Both students continued to work after the break. The subjects鈥� work performance after the break was compared with their performance before the break. Overall, subjects worked harder when told the other student鈥檚 dismissal was random.

Describe how you would randomly assign the subjects to the treatments

a. using slips of paper.

b. using technology.

c. using Table D.

Chocolate and happy babies A University of Helsinki (Finland) study wanted to determine if chocolate consumption during pregnancy had an effect on infant temperament at age 6 months. Researchers began by asking 305healthy pregnant women to report their chocolate consumption. Six months after birth, the researchers asked mothers to rate their infants鈥� temperament using the traits of smiling, laughter, and fear. The babies born to women who had been eating chocolate daily during pregnancy were found to be more active and 鈥減ositively reactive鈥濃�攁 measure that the investigators said encompasses traits like smiling and laughter.

a. What are the explanatory and response variables?

b. Was this an observational study or an experiment? Justify your answer.

c. Does this study show that eating chocolate regularly during pregnancy helps produce infants with good temperament? Explain your reasoning

See all solutions

Recommended explanations on Math Textbooks

Pure Maths

Read Explanation

Calculus

Read Explanation

Probability and Statistics

Read Explanation

Applied Mathematics

Read Explanation

Mechanics Maths

Read Explanation

Decision Maths

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.