Scientific research on popular beverages consisted of 65 studies that were fully sponsored by the food industry, and 35 studies that were conducted with nocorporate ties. Of those that were fully sponsored by the food industry, 14 % of the participants found the products unfavorable, 24 % were neutral, and 62% found the products favorable. Of those that had no industry funding, 40 % found the products unfavorable, 18 % were neutral, and 42 % found theproducts favorable.What is the probability that a participant selected at random found the products favorable?4If a randomly selected participant found the product favorable, what is the probability that the study was sponsored by the food industry?If a randomly selected participant found the product unfavorable, what is the probability that the study had no industry funding?

Let us assume the given events as: The beverage is fully sponsored by the food industry, The…

Answered: Scientific research on popular…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The International Average Salary Income Database provides a comparison of average salaries for various professions. The data are gathered from publications and reports obtained directly from government agencies (such as the US Bureau of Labor Statistics) or from the International Labour Organization. Suppose an industrial/organizational psychologist is interested in the relationships between job satisfaction, job performance, and job compensation. She has data from five different countries on the average monthly salaries paid to firefighters. She begins her analysis by converting all of the salary data into US dollars: Country Lithuania Germany the United States Australia Austria Country Lithuania Germany the United States Average Monthly Salary(US dollars) $185 Australia Austria $1,895 $2,729 $2,605 $1,134 Standard Deviation (US dollars) $27.80 $473.80 $818.60 z-score for $1,500 Salary $781.60 $283.60 Original Currency litas To appreciate the differences among the countries, she…
2. An article in the journal Applied Nutritional Investigation reported the results of a comparison of two different weight-loss programs (Liao, 2007). In the study, obese participants were randomly assigned to one of two groups and the percent of body fat loss was recorded. The soy group, a low-calorie group that ate only soy-based proteins (M= 3.1, s=0.55), while the traditional group, a low-calorie group that received 2/3 of their protein from animal products and 1/3 from plant products (M= 1.9, s=0.45). If sm1-M2 = 0.24, s²pooled = 0.25, n1 = 8, n2 = 10 is there a difference between the two diets. Use alpha of .05 and a two-tailed test to complete the 4 steps of hypothesis testing.
A survey of 2645 consumers by DDB Needham Worldwide of Chicago for public relations agency Porter/Novelli showed that how a company handles a crisis when at fault is one of the top influences in consumer buying decisions,with 73% claiming it is an influence. Quality of product was the number one influence, with 96% of consumers stating that quality influences their buying decisions. How a company handles complaints was number two, with 85% of consumers reporting it as an influence in their buying decisions. Suppose a random sample of 1,200 consumers is taken and each is asked which of these three factors influence their buying decisions. Appendix A Statistical Tables a. What is the probability that more than 910 consumers claim that how a company handles a crisis when at fault is an influence in their buying decisions?b. What is the probability that fewer than 1,125 consumers claim that quality of product is an influence in their buying decisions?c. What is the probability that between…
A sociologist studying freshmen at a major university carried out a survey, asking (among other questions) how often students went out per week, how many hours they studied per day, and how many hours they slept at night. The sociologist decides to use his introductory sociology class to conduct the survey. If the survey is not representative of the freshmen at the university, the conclusions from the study are likely to be: on target. biased. overefficient. None of the answer options is correct.
In the book Business Research Methods, Donald R. Cooper and . William Emory (1995) discuss a manager who wishes to compare the effectiveness of two methods for training new salespeople. The authors describe the situation as follows: The company selects 22 sales trainees who are randomly divided into two equal experimental groups-one receives type A and the other type B training. The salespeople are then assigned and managed without regard to the training they have received. At the year's end, the manager reviews the performances of salespeople in these groups and finds the following results: Average Weekly Sales. Standard Deviation HO: μA - μB ≤ t= (a) Set up the null and alternative hypotheses needed to attempt to establish that type A training results in higher mean weekly sales than does type B training. Reject Do not reject Do not reject Do not reject Very strong A Group 3.214 X₁ $1,352 $1= 224 Confidence interval [ B Group X2 = $1,000 $2 = 286 (b) Because different sales trainees…
In a clinical experiment, people newly diagnosed with depression were randomly placed into two treatment groups: group A only took medication to treat depression and group B took medication and also underwent counseling. They then tracked their progress and grouped results into two categories after one year of treatment: "good outcome" and "poor outcome" based on improvement from initial diagnosis. The results of this study are represented by the following contingency table: poor outcome good outcome medication & counseling medication only 24 276 42 258 Perform a relative risk analysis on this dataset. What is the relative risk score? (include three significant digits; e.g. 0.001)
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2.
A doctor wanted to study the effect of four different treatments on mental health. A group of 100 adults experiencing depression volunteered for the study. The doctor randomly assigned one-fourth of them to each of four groups. Group 1 followed a specific exercise plan, group 2 followed a specific diet plan, group 3 followed an exercise and diet plan, and group 4 did not follow any plan. After 4 weeks, the doctor contacted each participant and asked them if they felt any better. The results are displayed in the table. The doctor would like to know if these data provide convincing evidence that the distribution of responses differs across the treatment groups in the population of all patients like these. The random condition is met. The 10% condition is not needed because random sampling did not take place. This table of expected counts shows that all expected counts are at least 5. What is the value of the chi-square test statistic? χ‑2 = 5.03 χ‑2 = 6.26 χ‑2 = 25.33 χ‑2 = 39.22

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