QUESTION TWO. The marketing department of a major personal fragrance company was trying toascertain the perfect level of pheromones (hormones used to attract the opposite sex) to include intheir new men's cologne. Too little would create no attraction, and too much would possibly berepulsive. Male models wearing each of five different formulations, ranging in increasing amount ofpheromones from an infinitesimal amount to a much greater amount, were lined up; 500 participants inthe study approached each, then chose the male model they thought smelled best. Ordinal results arepresented below.Pheromone AmtNumberpreferring(in order)1= infinitesimal502= a little more503= even more1004= moderately more2005= much greater100total500Calculate the test statistic, as well as the 95% confidence K-critical value, and state your result.

Answered: Image /qna-images/answer/3cd13174-17a6-4fe8-b356-aad253057109.jpg

Answered: QUESTION TWO. The marketing department…

Trigonometry (MindTap Course List)

10th Edition

ISBN:9781337278461

Author:Ron Larson

Publisher:Ron Larson

Chapter6: Topics In Analytic Geometry

Section6.4: Hyperbolas

Problem 5ECP: Repeat Example 5 when microphone A receives the sound 4 seconds before microphone B.

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Repeat Example 5 when microphone A receives the sound 4 seconds before microphone B.
Question 42, A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the US. Suppose a sample of 20 Amserican is selected as part of the study of the state of the nation. Compute the probability that exactly 4 of the 20 Americans surveyed are satisfied with the way things are going in the United States Compute the probability that at leeast 2 of the Americans surveyed are satisfied with the way things are going in US. Fro the sample of 20 Americans compute the expected number of Americans who are satisfied with the way things are going in US. For the sample of 20 Americans, compute the variance and standard deviation of the number of Americans who are satisfied with the way things are going in the US.
Question #11 A tamoxifen study claims that a combination of chemotherapy and the hormone therapy tamoxifen is more effective than tamoxifen alone in preventing breast cancer. In the study, a group of researchers from the U.S. and Canada studied 1477 postmenopausal women with early-stage breast cancer. The women were randomly assigned to one of three study groups. The first group of 361 received tamoxifen alone on a daily basis for five years. The second group of 566 received chemotherapy and tamoxifen for six months, and then completed five years of tamoxifen treatment. And the third group of 550 received chemotherapy alone for six months followed by five years of tamoxifen treatment. All 1477 patients knew which treatment they were receiving.In this study, which is the control group? the third group of 550 that received chemotherapy alone for 6 months and then tamoxifen for 5 years the second group of 566 that received tamoxifen and chemotherapy concurrently for 6 months the first…
Question 1) Consider the following context: The nutrition and food science division of Farnsworth Pharmaceuticals is alpha testing an OTC diagnostic kit so that adults who self-report a certain food allergy can affirm their insensitivity to that food allergen. Preliminary clinical trials yielded that 25% of the volunteers who suspected they had food allergies were clinically identified as sensitive or intolerant to the food allergen; unfortunately and disappointingly, only 10% of those who tested positive in the clinic also tested positive with the kit. Furthermore, of those self-reporting adult volunteers who had a negative clinic outcome, 5% tested positive anyway with the kit. How many complete branches, from start to finish, would a tree diagram that models this context include? H Question 2) The nutrition and food science division of Farnsworth Pharmaceuticals is alpha testing an OTC diagnostic kit so that adults who self-report a certain food allergy can affirm their…
Question 4 A country club wants to exam the effects of a new marketing campaign that attempts to get more people within the community to become members. In many communities, when people buy a house in the area, they receive a “Welcome Wagon” gift basket containing coupons to local restaurants. The idea of the marketing campaign is to include a free two month membership to the country club in the gift basket with the hope that once “new” residents try the country club then at least a certain proportion will want to become real members. One member of the Club’s Executive Council believes that at least 25% of the people who receive the coupons for the free membership will use the coupon. When testing the hypothesis that at least 25% of the people who receive the coupons for the free membership will use the coupon, what is the null and alternative hypothesis?
Question 8:Research at the University of Toledo indicates that 50% of students change their major area of study after their first year in a program. A random sample of 100 students in the College of Business revealed that 48 had changed their major area of study after their first year of the program. Has there been a significant decrease in the proportion of students who change their major after the first year in this program? Test at the .05 level of significance.
Question 15: In a recent Super Bowl, a TV network predicted that 90 % of the audience would express an interest in seeing one of its forthcoming television shows. The network ran commercials for these shows during the Super Bowl. The day after the Super Bowl, and Advertising Group sampled 55 people who saw the commercials and found that 48 of them said they would watch one of the television shows.Suppose you are have the following null and alternative hypotheses for a test you are running:H0:p=0.9H0:p=0.9Ha:p>0.9Ha:p>0.9Calculate the test statistic, rounded to 3 decimal places z=
Question 5 According to a survey of American households, the probability that the residents own 2 cars if annual household income is over $25,000 is 80%. Of the households surveyed, 60% had incomes over $25,000 and 70% had 2 cars. Use the Bayes Theorem to calculate the probability that annual household income is at most $25,000 if the residents of a household do not own 2 cars.
Question 8: The MTA’s daily operating profit is normally distributed with a mean of -30 million dollars (that’s negative 30) and an SD of 50 million dollars. The new mayor of NYC needs to communicate this information to the public, and asks you to give her a range of daily revenues, which contain 90% of the possible values. Give her two numbers, a lower and upper bound, so that there’s a 5% chance that the daily revenue is less than the lower bound, and a 5% chance it is more than the upper bound.
Question 3: According to the journal Chemical Engineering, an important property of a fiber is its water absorbency. A random sample of 20 pieces of cotton fiber is taken and the absorbency on each piece was measured. The following are the absorbency values:18.71 21.41 20.72 21.81 19.29 22.43 20.17 23.71 19.44 20.50 18.92 20.33 23.00 22.85 19.25 21.77 22.11 19.77 18.04 21.12 17.89 19.63 22.85 20.49(a) Calculate the sample mean and median for the above sample values.
Question 15. Herpes simplex-2. Suppose 7.5% of a population is infected with Herpes simplex-2 virus (HSV2). You select seven individuals at random from the population. What is the probability of finding at least one HSV2-positive individual in your sample? [Hint: First find Pr(X = 0). Then make use of the fact that (X ≥ 1) = 1− Pr(X = 0).]
Question 2 A study was conducted on 108 individuals to determine if their attraction to a prospective partner is impacted by the physical appearance of the individual. This study was conducted on individuals who were single, dating or married. The prospecting individuals are classified as Muscular, Average and Overweight. The ratings are provided below (the higher the ratings the more attracted an individual is): Single Dating Married Muscular 10.00 9.00 1.00 5.00 1.00 5.00 9.00 4.00 3.00 2.00 9.00 7.00 8.00 2.00 1.00 4.00 3.00 7.00 9.00 7.00 9.00 1.00 6.00 1.00 8.00 5.00 7.00 10.00 2.00 8.00 10.00 5.00 4.00 2.00 3.00 8.00 Average 9.00 8.00 5.00 5.00 5.00 1.00 7.00 7.00 6.00 10.00 10.00 3.00 3.00 1.00 8.00 10.00 10.00 3.00 4.00 10.00 5.00 1.00 3.00…

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