Research Methods for the Behavioral Sciences (MindTap Course List)
6th Edition
ISBN: 9781337613316
Author: Frederick J Gravetter, Lori-Ann B. Forzano
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 6, Problem 9E
Suppose that you wake up in the morning with all the symptoms of a head cold. You take a cold pill and eat a big bowl of your mother’s chicken soup. By midday your cold symptoms are gone, and you are feeling much better. Can you conclude that the chicken soup cured your cold? Explain why or why not.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to patients
with the flu and say that nausea is a side effect if people become nauseous. However, past research
indicates that about 30% of people who get the flu experience nausea, and you believe that the percentage
of those who experience nausea while having the flu and taking Tamiflu will be greater than 30%, which
would indigate that nausea is a side effect of Tamiflu.
If you are going to test this claim at the 0.05 significance level, what would be your null and alternative
hypotheses?
Họ:
H1:
What type of hypothesis test should you conduct (left-, right-, or two-tailed)?
A certain affects virus 0.4% of the population (in a population of 100,000 people, 400 will be infected with
the virus). A test used to detect the virus in a person is positive 87% of the time if the person has the virus
(true positive) and it is positive 14% of the time if the person does not have the virus (false positive). Fill in
the remainder of the following table and use it to answer the questions below.
Infected
Not Infected
Total
Positive Test
Negative Test
Total
400
99,600
100,000
Round all percents to the nearest tenth of a percent as needed.
a) Examine the "Positive Test" row of the table. If a person tests positive for the virus, what is the
probability that the person is really infected.
(Note: in medical terminology, this probability measures the "positive predictive value" of the test)
b) If a person tests negative for the virus, what is the probability that the person really is not infected.
(This is called the "negative predictive value")
A certain affects virus 0.4% of the population (in a population of 100,000 people, 400 will be infected with
the virus). A test used to detect the virus in a person is positive 87% of the time if the person has the virus
(true positive) and it is positive 14% of the time if the person does not have the virus (false positive). Fill in
the remainder of the following table and use it to answer the questions below.
Infected
Not Infected
Total
Positive Test
Negative Test
Total
400
99,600
100,000
Chapter 6 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 6.1 - Describe, compare, and contrast the five research...Ch. 6.1 - Define research strategy, research design, and...Ch. 6.2 - Define the concept of external validity and a...Ch. 6.2 - Define the concept of internal validity and a...Ch. 6.3 - Identify and explain the common threats to...Ch. 6.4 - Describe how extraneous variables can become...Ch. 6.4 - Describe how environmental variables can be...Ch. 6.5 - Define experimenter bias, demand characteristics,...Ch. 6 - In addition to the key words, you should also be...Ch. 6 - For each of the following scenarios, identify...
Ch. 6 - How is the descriptive strategy different from the...Ch. 6 - Explain the difference among the terms research...Ch. 6 - A researcher conducts a study with 6-year-old...Ch. 6 - A researcher finds that college students are more...Ch. 6 - Explain how using college students as participants...Ch. 6 - What is the novelty effect, and how does it affect...Ch. 6 - Suppose that you wake up in the morning with all...Ch. 6 - What is the primary threat to internal validity...Ch. 6 - Describe how experimenter bias can be a threat to...Ch. 6 - Describe how participant reactivity can be a...Ch. 6 - Selection bias and individual differences are both...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- Food rheologists study different forms of foods and how the form of a food affects how full we feel when we eat it. One study prepared portions of apple juice and apples with the same number of calories. Half of the subjects were fed apples on one day followed by apple juice on a later day; the other half received the apple juice followed by the apples. After eating, the subjects were asked about how full they felt. Is this an experiment? Why or why not?arrow_forwardPlease explain the process. Sometimes my answers come back wrong through this service Thank You Bartleby and Staff!arrow_forwardWhat is the particular solution??arrow_forward
- As humans we consume food. The body extracts good things such as proteins and vitamins and throws away waste. A typical waste product is uric acid. High levels of uric acid can be an indication of conditions such as gout, kidney disease, and cancer. For females a high level of uric acid is 6 mg/dL or more and for males a high level of uric acid is 7 mg/dL or more. Suppose, over a period of months, an adult male was given 9 blood tests for uric acid. The results of each blood test are shown below. results 10.24 10.1 11.19 11.1 9.34 9.58 9.63 10.59 9.58 The distribution of uric acid in healthy adult males is normally distributed with known population standard deviation, σ=1.15σ=1.15 mg/dl.Find a 95% confidence interval for the population mean of uric acid in this adult male's blood. Assume the sample of blood tests were given in a way that's equivalent to a simple random sample. (Round your answers to two decimal places.) margin of error ? mg/dLlower limit? mg/dLupper limit?…arrow_forwardI just want d and e to be resolved.arrow_forwardAs humans we consume food. The body extracts good things such as proteins and vitamins and throws away waste. A typical waste product is uric acid. High levels of uric acid can be an indication of conditions such as gout, kidney disease, and cancer. For females a high level of uric acid is 6 mg/dL or more and for males a high level of uric acid is 7 mg/dL or more. Suppose, over a period of months, an adult female was given 5 blood tests for uric acid. The results of each blood test are shown below. results 6.75 6.68 12.07 10.29 6.68 The distribution of uric acid in healthy adult females is normally distributed with known population standard deviation, σ=2.09σ=2.09 mg/dl.Find a 95% confidence interval for the population mean of uric acid in this adult female's blood. Assume the sample of blood tests were given in a way that's equivalent to a simple random sample. (Round your answers to two decimal places.)margin of error mg/dLlower limit mg/dLupper limit mg/dLDoes this…arrow_forward
- As humans we consume food. The body extracts good things such as proteins and vitamins and throws away waste. A typical waste product is uric acid. High levels of uric acid can be an indication of conditions such as gout, kidney disease, and cancer. For females a high level of uric acid is 6 mg/dL or more and for males a high level of uric acid is 7 mg/dL or more. Suppose, over a period of months, an adult male has taken 8 blood test for uric acid. The results of the test are shown below. results 1.54 7.96 7.51 4.84 1.87 6.53 5.99 5.03 The distribution of uric acid in healthy adult males is normally distributed.Find a 95% confidence interval for the population mean of uric acid in this adult male's blood. (Round your answers to two decimal places.)margin of error mg/dL lower limit mg/dL upper limit mg/dLDoes this confidence interval suggest that this adult male has a high level of uric acid? No, since the interval is contained within the acceptable range levels. Yes, since the…arrow_forwardAs humans we consume food. The body extracts good things such as proteins and vitamins and throws away waste. A typical waste product is uric acid. High levels of uric acid can be an indication of conditions such as gout, kidney disease, and cancer. For females a high level of uric acid is 6 mg/dL or more and for males a high level of uric acid is 7 mg/dL or more. Suppose, over a period of months, an adult female was given 10 blood tests for uric acid. The results of each blood test are shown below. Pisces for Tutoring BVC Student esources results 2.52 4.15 5.91 7.55 7.77 5.4 4.37 3.22 3.48 3.13 hat pogle Drive The distribution of uric acid in healthy adult females is normally distributed with known population standard deviation, o = 2.15 mg/dl. Find a 95% confidence interval for the population mean of uric acid in this adult female's blood. Assume the sample of blood tests were given in a way that's equivalent to a simple random sample. (Round your answers to two decimal places.)…arrow_forwardAs humans we consume food. The body extracts good things such as proteins and vitamins and throws away waste. A typical waste product is uric acid. High levels of uric acid can be an indication of conditions such as gout, kidney disease, and cancer. For females a high level of uric acid is 6 mg/dL or more and for males a high level of uric acid is 7 mg/dL or more. Suppose, over a period of months, an adult male has taken 8 blood test for uric acid. The results of the test are shown below. results 5.94 5.79 4.21 6.59 4.59 3.33 5.27 3.27 The distribution of uric acid in healthy adult males is normally distributed.Find a 95% confidence interval for the population mean of uric acid in this adult male's blood. (Round your answers to two decimal places.)margin of error mg/dLlower limit mg/dLupper limit mg/dLarrow_forward
- As humans we consume food. The body extracts good things such as proteins and vitamins and throws away waste. A typical waste product is uric acid. High levels of uric acid can be an indication of conditions such as gout, kidney disease, and cancer. For females a high level of uric acid is 6 mg/dL or more and for males a high level of uric acid is 7 mg/dL or more. Suppose, over a period of months, an adult male was given 6 blood tests for uric acid. The results of each blood test are shown below. results 9.48 11.1 8.58 11.4 10.34 11.58 The distribution of uric acid in healthy adult males is normally distributed with known population standard deviation, σ=1.94σ=1.94 mg/dl.Find a 95% confidence interval for the population mean of uric acid in this adult male's blood. Assume the sample of blood tests were given in a way that's equivalent to a simple random sample. (Round your answers to two decimal places.)margin of error __ mg/dL lower limit ___ mg/dL upper limit ___ mg/dLarrow_forwardYou are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to patients with the flu and say that nausea is a side effect if people become nauseous. However, past research indicates that about 30% of people who get the flu experience nausea, and you believe that the percentage of those who experience nausea while having the flu and taking Tamiflu will be greater than 30%, which would indicate that nausea is a side effect of Tamiflu.a) If you going to test this claim at the 0.05 significance level, what would be your null and alternative hypotheses?H0H0: H1H1: b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailedarrow_forwardYou are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to patients with the flu and say that nausea is a side effect if people become nauseous. However, past research indicates that about 30% of people who get the flu experience nausea, and you believe that the percentage of those who experience nausea while having the flu and taking Tamiflu will be greater than 30%, which would indicate that nausea is a side effect of Tamiflu.If you are going to test this claim at the 0.05 significance level, what would be your null and alternative hypotheses? H0: ? p = p ≠ p < p > p ≤ p ≥ μ = μ ≠ μ < μ > μ ≤ μ ≥ H1: ? p = p ≠ p < p > p ≤ p ≥ μ = μ ≠ μ < μ > μ ≤ μ ≥ What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailedarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
what is Research Design, Research Design Types, and Research Design Methods; Author: Educational Hub;https://www.youtube.com/watch?v=LpmGSioXxdo;License: Standard YouTube License, CC-BY