A company is deciding between a blue logo and a gold logo. Suppose 50 out of 160 adultsapprove of the blue logo, and 210 out of 250 children approve of the blue logo. Suppose 220out of 400 adults approve of the gold logo, and 37 out of 40 children approve of the gold logo. (a) Which logo has a higher approval rate among adults (and what is that rate as apercentage)? (b) Which logo has a higher approval rate among children (and what is that rate as apercentage)? (c) Which logo has a higher approval rate overall (and what is that rate as a percentage)?

A company is deciding between a blue logo and a gold logo. Suppose 50 out of 160 adultsapprove of the blue logo, and 210 out of 250 children approve of the blue logo. Suppose 220out of 400 adults approve of the gold logo, and 37 out of 40 children approve of the gold logo. (a) Which logo has a higher approval rate among adults (and what is that rate as apercentage)? (b) Which logo has a higher approval rate among children (and what is that rate as apercentage)? (c) Which logo has a higher approval rate overall (and what is that rate as a percentage)?

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...

See similar textbooks

Similar questions

In a survey of 1000 randomly selected adults in the United States, participants were asked what their most favorite and what their least favorite subject was when they were in school (Associated Press, August 17, 2005). In what might seem like a contradiction, math was chosen more often than any other subject in both categories! Math was chosen by 232 of the 1000 as the favorite subject, and it was also chosen by 366 of the 1000 as the least favorite subject. In USE SALT (a) Construct a 95% confidence interval for the proportion of U.S. adults for whom math was the favorite subject in school. (Give the answers to three decimal places.) (b) Construct a 95% confidence interval for the proportion of U.S. adults for whom math was the least favorite subject. (Give the answers to three decimal places.)
Reports have found that many U.S. adults would rather live in a different type of community than where they are living. A national survey of 2260 adults asked: "Where do you live now?", and "What do you consider to be the ideal community?" Response options were City (C), Suburb (S), Small Town (T), or Rural (R). A representative portion of this survey for a sample of 100 respondents is as follows: Question 1: Where do you live now? S T R C R S S C S S T R S S T C C R T C S S C C S C T R R C T S S S S C S C S T T C S T C T C T C R C C R S C C R T C R T R S R T R T C S T T T C C S C S C T C S S T S C C R T T T T C C R T S C C R S Question 2: What do you consider to be the ideal community? S R C T T C T T C T S S S T T C T T C R S T C C S C T R C S T S T T R C T T R S C R T S R R R S C R T C S T T T T S T T S T R R T C C S R R R C T R S R T T T S C T S C T S S R T T C R T R T R R C R T EXCEL…
1. Suppose a senior is choosing classes and must select from a set of equal value classes needed for graduation There are 15 classes, all offered at different times. The student must take 5 classes to graduate. a. How many possible course schedules can the student choose? b. Suppose another student in the same major also chooses a schedule from the same 15 courses, also 5 courses, and chooses them independently of the first student (say each class is equally likely to be chosen). What is the probability that the two students choose the exact same schedule?
A sample of 320 people is surveyed. The people are classified according to political affiliation ("Democrat", "Republican", or "Independent"). They are also classified according to opinion on a bill ("in favor of", "opposed to", or "indifferent to"). The results are given in the contingency table below. In favor of Opposed to Indifferent to Democrat 35 48 40 Republican 50 24 50 Independent 37 20 16 Among the Republican respondents, what is the relative frequency of those who happen to be indifferent toward the bill? Round your answer to two decimal places.
6) A small business owner you follow on TikTok is SO EXCITED because last month, she was able to begin selling her product in a popular chain store around the nation. Her contract with the chain store says that at any time, there will be at least 20 of her products sitting out on the shelves. She wants to conduct a survey to see if that is true. She visits 5 of the local chain stores around her and records the number of products of hers that are on the shelves. She will then construct a 95% confidence interval to determine the mean number of products on the shelves for all of the stores. (a) Discuss whether this study meets the each of the conditions for constructing a confidence interval. If one of the conditions has not been met, what additional information would be required or what change in the study would you recommend? (b) If, instead of constructing a 95% confidence interval, the business owner constructed a 98% confidence interval, would the 98% interval be wider, narrower, or…
5. In a recent electrion, 72% of the voters voted to elect candidate Lopez for mayor. In the same election, 60% of the voters voted in favor of Proposition Q. 54% of the voters voted for both candidate Lopez and also voted in favor of Proposition Q. Find the propability that a randomly selected voter... a. ... voted for Lopez OR voted in favor of Proposition Q. b. ... voted for Lopez, given that they voted in favor of Proposition Q. c. ... didn't vote for Lopez nor did they vote for in favor of Proposition Q.
5. In recent years there has been a great deal of research demonstrating gender discrimination in science, technology, engineering and math (STEM) fields. In one experiment, for example, faculty members viewed an application for a laboratory manager position. The applications were identical except that half had a traditionally male name (John) and half had a traditionally female name (Jennifer). In addition, half of the faculty participants were from STEM fields and half were from non-STEM fields. The faculty were asked to rate the competence of the applicants on a 6-point scale, with 1 indicating a lower rating. Group means are presented below, along with an incomplete summary table. After completing the table, write a conclusion about the outcome of the experiment. Source Gender of applicant Male Female Between Treatments Gender of applicant Discipline of rater A x B interaction Within treatments Total SS 320 80 576 Discipline of Faculty Rater STEM M = 4.80 M = 4.02 df MS 20 1.25…
In a study of pain relievers, 50 people were given product A, and all but 10 experienced relief. In the same study, 20 people were given product B, and all but 3 experienced relief. Fill in the blanks below to make the most reasonable statement possible. Product ▼(Choose one) performed worse in the study. That is because % failed to get relief with this product, whereas only % failed to get relief with Product ▼(Choose one).
2. A survey on a sample of 35 new cars being sold at a local auto dealer was conducted to see which of three popular options: Air-conditioning (A), Bluetooth (B), and Rear Camera (C), were already installed. The survey found: 18 had A, 13 had B, 12 had C, 5 had A and B, 8 had A and C, 6 had B and C, 4 had all three options. Find the number of cars that had (a) A and B but not C, (b) A and C but not B, (c) B and C but not A; (d) only one of the options; (e) at least one option; (f) exactly two options; (g) none of the options.
#3