25 In a survey, 1000 respondents were asked about product preference. Of the interviewed, 65% favored a certain brand. What is the standard error in estimating the population proportion using the sample proportion? * 0.016 0.017 0.015 0.018

Q: A random sample of 100 high school students was surveyed regarding their favorite subject. The…

A: State the hypotheses.

Q: You want to conduct a survey to determine the proportion of people who favor a proposed tax policy.…

A: From the provided information, We want to conduct a survey to determine the proportion of people who…

Q: Nationally, 80 percent of adults own an automobile. You are interested in whether the same…

A: In the given condition, we are interested in examining the proportion of owning a car with the…

Q: o=58. From sample sizes of 36 adults find the proportion of sample means having values of at least…

A: here , sample size  = 36 population  mean = 162 population standard deviation = 58

Q: Cancer No Cancer Positive Test Result 41 26 Negative Test Result 11 672   (a) What is the…

A: This question is related to specificity and sensitivity of a diagnostic test result, we will solve…

Q: A poll found that 78 people out of a survey of size 109 watch at least three hours of TV per day…

A: Given data, n=109 x=78 sample proportion p=?

Q: I want to estimate the proportion of college professors who believe in aliens. How many college…

A: Given Confidence interval=90% sample proportion is within 5 percentage

Q: You want to know what percentage of students own pets at your university. In asking 10 random…

A: In an observational study, researcher observes the individuals and measure the outcomes. In this…

Q: 1. A local news report claims that 40% of the vehicles on the freeways are vans or SUV's. You go to…

A:

Q: You want to be 95% confident that the population mean is between 9.5 and 10.5, how big of a sample…

A:

Q: Caitlyn has to determine how many of the 120 employees in her work place has comprehensive car…

A: i) Here population will be the all 120 employees in Caitlyn's work place. ii) Here she use…

Q: 14) A researcher at a major clinic wishes to estimate the proportion of the adult population of the…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Solution: B. From the given information, confidence level is 0.99, p=0.92 and E=0.02.

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Q: I want to estimate the proportion of college professors who believe in aliens. How many college…

A: It is given that margin of error (E) is 0.05 and the confidence level is 0.95.

Q: Calculate the value of  = sample proportion that believes in love at first sight.     (b) Calculate…

A: here given, n= 500 x= no of individual say that they believe in love at first sight = 330

Q: Homer Simpson is interested in studying the ratio of the various colors of sprinkles on Lard Lad…

A: Introduction: Here, it is not mentioned whether the three donuts of each variety are chosen randomly…

Q: Online customer service is a key element to successful online retailing. According to a marketing…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: A researcher studying the proportion of 8 year old children who can ride a bike, found that 219…

A: Given: n= 567 ,x= 219.0 Need to find sample proportion.

Q: a. Determine the sample proportion, p, of college students who own shares of stock. b. If the…

A:

Q: 3) A report on the nightly news broadcast stated that 10 out of 108 households with pet dogs were…

A: Given data A report on the nightly news broadcast stated that 10 out of 108 house holds with pet…

Q: The mean salary of ten employees is $35,000, and the median is $33,000. The highest-paid employee…

A:

Q: You want to conduct a survey to determine the proportion of people who favor a proposed tax policy.…

A: The margin of error is computed by taking the product of standard error and critical value.

Q: 8. A research report from an independent-measures study states that there are significant…

A: The given information is as follows: F(3, 48) = 2.95, p < 0.05.

Q: You are the operations manager for an airline and you`re considering a higher fair level for…

A: The given information is as follows: The confidence level is (1–α) = 99%. From this, the level of…

Q: Snoring After surveying 995 adults, 81.5% of whomwere over 30, the National Sleep Foundation…

A: a)

Q: sample of 10 rice farms in Pila, Laguna was taken using systematic sampling with a sampling rate of…

A: Given data, A sample of 10 rice farms in Pila No of farms say irritated(Yes) is 5 No of farms say…

Q: In a poll of 1000 randomly selected voters in a local election, 415 voters were against school bond…

A: #Ans -  Given,           In a poll of n = 1000 randomly selected voters in a local election, x = 415…

Q: The theater owner wants to sample 250 customers out of the 3500 in attendance. This will be a 1 in k…

A: Population is the set of all objects of interest. Sample is s subset of the population. It is not…

Q: You want to estimate the proportion of home accident deaths that are caused by falls. How many home…

A: Formula for the sample size needed to estimate a population proportion is

Q: A colonoscopy is a medical procedure used to detect the early signs of colorectal cancer. The…

A: FIND: Find sensitivity and specificity

Q: To assess attitudes towards issues that affect the residents of a town, the town randomly chose 500…

A: Given data: Sample size (n) = 500 families Town received (x) = 370 completed surveys

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given that Margin of error, E = 3.5 percentage point = 0.035 Level of confidence = 99% The critical…

Q: (c) Provide the sample proportion, p hat, used to estimate the population proportion p of all adults…

A: The best point estimate of the population proportion is the sample proportion. It was found that out…

Q: A survey of 1047 Americans found that 835 drive to work. a. What is n? b. What is x? c. Many…

A: Given information- We have given that in a survey of 1047 Americans found that 835 drive to work. a)…

Q: A randómly selected sample of 1000 college students was asked whether they had ever used V. the drug…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Based on a sample of 800 people, 48% owned cats The test statistic is:  (to 2 decimals) The…

A: The test statistics of a proportion z-test is z=p^-pp1-pn Since the p-value to be tested is not…

Q: What is the formula used to determine the proportion (P) of something in a sample population? ох in…

A: In proportion test estimate of the proportion is given as follows: p⏞=Xn Where X is number in the…

Q: 20. What is the sample proportion p? 81 O 0.40 O 0.46 0.54

A:

Q: atherine Chão, Director of Marketing Research, needs a sample of households to participate in the…

A: Quota sampling is known as a method non-probability sampling. In this method, the available…

Q: A college president says, “99% of the alumni support my firing of Coach Boggs.” You contact an SRS…

A: 1. The population includes all the alumni of the college and the concern is about firing of Coach…

Q: A school principal claims that the numeracy rate of the senior high school students in his school is…

A: Given p=0.6, pcap=200/500=0.4, n=500, alpha=0.05 1. H0:p=0.60 vs H1:p!=0.60 2) alpha=0.05 3) Test…

Q: A randomly selected sample of 1,000 college students was asked whether they had ever used the drug…

A: A randomly selected sample of 1,000 college students was asked whether they had ever used the drug…

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month.…

A: Givensample size = 563 tankers number of ships did not have spills = 445  number of ships have…

Q: Both before and after a recent earthquake, surveys were conducted asking voters which of the three…

A: Given data:   Peter Alan Sui Before 2077 1751 571 After 1689 1433 464

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 54% of the…

A: Given that : Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast…

Q: The city council of Pine Bluffs is considering increasing the number of police in an effort to…

A: Solution: a) Number of crimes is the dependent variable in the model. Dependent variable: Number of…

Q: Suppose 420 randomly selected people are surveyed to determine whether or not they subscribe to…

A: Given that, 420 randomly selected people are surveyed to determine whether or not they subscribe to…

Q: 25. Where do you live? The U.S. Census Bureau computed the proportion of U.S. residents who lived in…

A: (25)   State the hypotheses.   Null hypothesis:   Obtain the value of the test statistic. The value…

Q: A group project ivestigated the number of hours of TV viewed by students ona caollege campus. Two…

A: From the provided information, A group project investigated the number of hours of TV viewed by…