A South African manufacturer of BMW cars offers a model in one of three colors: Blue, Red, or Black. In his report, the manufacturer indicated that of the first 1000 cars sold, 400 were of color Blue. With this information from the manufacturer, perform a test at ? = 1% and conclude whether or not the customers do have more preference for BMW cars which have Blue color? Show all necessary s

Q: onrad wants to conduct a survey of students at his middle school to determine which sports they…

A: The objective of the question is to identify two survey methods that would likely generate fair and…

Q: A report just came out that stated that 24.9% of all Americans say that vanilla is their favorite…

A: A report just came out that stated that 24.9% of all Americans say that vanilla is their favorite…

Q: For observation study, determine whether cross-sectional, retrospective, or prospective is used.…

A: There are types of study, some of them are cross sectional, retrospective or prospective.…

Q: A small ice cream parlor has had great success over the past several years and is interested in…

A: Given information: Number of customers randomly selected in the sample, n = 56 Number of customers…

Q: find the mean for the number of correct answers

A: A multiple choice test with 17 questions, each question has four possible answers, one of which is…

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: At the college of science department in a university, 150 were surveyed and 20 of them were found to…

A:

Q: Of the 300 visitors polled,O liked to ski or snowboard. (Type a whole number.)

A:

Q: According to the September 20, 1994, issue of Family Circle, 39% of Americans own guns for hunting,…

A: Calculate expected frequencies by multiplying proportion by 2000 as given below, Obs. Freq.(Oi)…

Q: In a poll of 556 human resource​ professionals, 42.3​% said that body piercings and tattoos were big…

A: Number of human resource​ professionals (n) = 556 Probability of success (p) = 42.3% = 0.423

Q: A report just came out that stated that 21.2% of all Americans say that vanilla is their favorite…

A: a)   The report claims that 21.2%, 20.5%, 8.3%, 9% and remaining 41% (= 100 – 21.2 – 20.5 – 8.3 – 9)…

Q: Many young men in North America and Europe (but not in Asia) tend to think they need more muscle to…

A: It is given that,Sample mean = 2.35.Population standard deviation, sigma is 2.5.The sample size, n…

Q: The average (mean) score on an exam was 76.375 in a class consisting of 21 Administration students…

A: From the provided information, The average score on an exam was 76.375 consisting 21 Administration…

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: If 200 subjects were studied and 120 of them expressed a preference for Brand X, what percentage…

A: The total number of subjects is 200.

Q: SAccording to Inc.com, 79% of job seekers used social media in their job search in 2018. Many…

A:

Q: Last year, 41% of business owners gave a holiday gift to their employees. A survey of business…

A: Given Information : Population proportion , p = 0.41. Sample proportion , p⏞ = 0.32. Number of…

Q: For each description of sampling, decide if the sampling technique is A. Simple Random B. Stratified…

A: 2. In cluster sampling, the population is divided into naturally occurring groups/sections called…

Q: The Arizona Department of Transportation wishes to survey state residents to determine what…

A: Solution-: Given: M.E.=0.03,α=0.01, We take, p^=0.5 and  q^=0.5  We find how many residents do they…

Q: A report shows that 32% of citizens want to move out of theirneighborhood. An alderman wants to test…

A: The objective of the question is to identify the appropriate statistical test to determine if the…

Q: A report just came out that stated that 24.2%  of all Americans say that vanilla is their favorite…

A: Part 1: The table by filling the expected frequencies is as given below:   Observed frequency…

Q: In a recent Gallup poll, 1003 randomly selected adults in the United States were asked if they have…

A: According to the provided information, 1003 randomly selected adults in the United States were asked…

Q: A USE SALT (a) Calculate Pe SXS91) when n10. (b) How kely is it that the sample mean diameter…

A:

Q: As a part of a class project, a teacher brings a jar of 200 jawbreakers of three different colors,…

A: Given that one student draws 30 jawbreakers from the jar, of which 9 are orange, 11 are red and 10…

Q: Ask 20 of your classmates about their favorite viand among the choices; ADOBO, SINIGANG and MENUDO.…

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Q: To evaluate the performance of students of a course, an instructor used a quiz worth 15%, a test…

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Q: I would like to esCmate the proporCon of adults who own a pet. How many people should I poll in…

A: Given, c=0.94 and E=2%=0.02.

Q: 240 students responded to the imaginary student canteen survey. The survey asked whether the student…

A: We have taken an opinion on the quality of the food on a scale of 1-5, where 1 means the worst and 5…

Q: A consumer agency wants to determine which of two laundry detergents, A or B, cleans clothes better.…

A: Given information: The given randomization dot-plot is based on 200 simulated samples.

Q: A survey was conducted at UP Manila where 80 students were randomly asked whether they liked…

A:

Q: Suppose we want to compare the GPA for students in at least three different social classes (Upper,…

A: It is given that the researcher wants to compare the GPA students in three different social classes.…

Q: A group of 499 students were surveyed about the courses they were taking at their college with the…

A: