Are beer (B), wine (W), and liquor (L) equally favored by Americans as the alcoholic drink they consume most often? A 2016 Gallup survey interviewed a random sample of American adults about their alcohol consumption and preferences. Of the 647 non-abstainers who answered the question about which beverage beer, wine, or liquor they consume most often, 293 selected beer, 218 selected wine, and the remaining 136 selected liquor. To answer this question, which null hypothesis would you test? Note: Pg=P(beer), PL=P(liquor), Pw-P(wine) O Ho: PB=0.453, Pw=0.337, PL = 0.210 O Ho : Homogeneity of distribution of a categorical response Họ : The two categorical variables are independent O Họ: PB= Pw=P_ = 1/3 O Ho: HB=Hw=HL=1/3
Q: Two opposing opinions were shown to a random sample of 1,744 US buyers of a particular political…
A: **Part A: Creating a 95% Confidence Interval for the Proportion of Buyers Choosing Opinion A** A…
Q: Two opposing opinions were shown to a random sample of 1,500 buyers of a particular political news…
A: Given: n = 1500 39% chose opinion A 54% chose opinion B 7% chose Neutral Formula Used:
Q: The results of a nationwide Gallup poll revealed that 59.3% of people polled were in favor of the…
A: See the handwritten solution
Q: A research group conducted an extensive survey of 3116 wage and salaried workers on issues ranging…
A:
Q: A liberal arts college was interested in determining if there were different graduate school…
A: Given The data is as follows: Graduate studies Undergraduate Business Law Theology…
Q: An article summarizes a report of law enforcement agencies regarding the use of social media to…
A: Given, Population proportion p=0.25 Sample proportion = 0.34 Sample size n=800 Level of significance…
Q: According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), and the National…
A: Given Information: Hypothesized value of population proportion is p0=41%=0.41 Sample size (n) = 462…
Q: Twenty-two subjects are tested, given a training session, and then retested. What test do you…
A: Dependent samples: If the sample values from one population are associated or matched with the…
Q: A movie director who combines dark humor and neo-western in his films is curious about gender…
A: There are two independent samples which are males and females. Both samples follows normal…
Q: A report summarizes a survey of people in two independent random samples. One sample consisted of…
A: For young adults, n1 = 700, p1^ =0.37 p1^ = x1/n1 x1= p1^*n1 =0.37*700 = 259 For parent of…
Q: Gallup conducted a survey of 1,015 randomly selected U.S. adults about "Black Friday" shopping. They…
A:
Q: The Pew Research Center conducted a study of gender bias. The report "Men or Women: Who is the…
A: (a) The two treatments in this experiment are:The treatment of reading a profile of Ann Clark (first…
Q: A study compares students who use a website and students who do not use the website. In addition to…
A: The two samples (141 students who were users of the website and 68 students who were not users of…
Q: A research group conducted an extensive survey of 3015 wage and salaried workers on issues ranging…
A: Obtain the 90% confidence interval for the true proportion of all wage and salaried workers who…
Q: The 1958 Detroit Area Study was an important investigation of the influence of religion on everyday…
A: Given Favourable cases (X1)=118 Sample size (N1)=276 Favourable cases (X2)=88 Sample size (N2)=224
Q: Among survey respondents who thought the economy was getting better, what fraction were Democrats?…
A: Given - Better Same Worse Total Republican 38 104 44 186 Democrat 12 87 137 236 None 21…
Q: A research group conducted an extensive survey of 3111 wage and salaried workers on issues ranging…
A: The question is about confidence interval Given : No. of workers under survey ( n ) = 3111 No. of…
Q: research group conducted an extensive survey of 3113 wage and salaried workers on issues ranging…
A: Solution: Given information: p= 0.47 Population proportion E= 0.013 Margin of error α=0.05 Level…
Q: A research group conducted an extensive survey of 3170 wage and salaried workers on issues ranging…
A:
Q: Based on sales over a six-month period, the five top-selling compact carsare Chevy Cruze, Ford…
A: Given: Compact Car Observed Frequency (O) % Market Share Chevy Cruze 108 24% Ford Focus 92…
Q: A research group conducted an extensive survey of 3093 wage and salaried workers on issues ranging…
A:
Q: A study examined parental influence on the decisions of teenagers from a certain large region to…
A: given data group 1 :n1 = 264x1 = 36group 2: n2 = 46x2 = 25claim : p1 ≠ p2
Q: This question refers to a survey of a university's faculty members on affirmative action policies…
A: The conservative margin error is calculated based on the sample size. It is defined in percentage as…
Q: A research group conducted an extensive survey of 2817 wage and salaried workers on issues ranging…
A: n=2817x=1585
Q: Based on sales over a six-month period, the five top-selling compact cars are Chevy Cruze, Ford…
A: Given, The data set is; Chevy Cruze 108 Ford Focus 92 Hyundai Elantra 64 Honda Civic 84…
Q: Volunteers at a teen hotline have been assigned based on the assumption that 40% of all calls are…
A: It is given that 40% of all calls are drug related, 25% are sex-related, 25% are stress-related and…
Q: In statistical surveys where individuals are randomly chosen and asked questions, experience has…
A: From the above given data the following solution is provided below:
Q: Big city Small town Rural Heart disease 35 38 24 The place of life 22 28 53 If one of these…
A:
Q: After a product recall, a company solicits feedback from a random sample of 100 customers regarding…
A: The chi-square test statistic is χ2=7.77 and the P-value is between 0.02 and 0.025.
Q: A research group conducted an extensive survey of 3112 wage and salaried workers on issues ranging…
A:
Q: According to the National Institute on Alcohol Abuse and Alcoholism, and the National Institutes of…
A: From the provided information, Sample size (n) = 462 From which 166 admitted to having engaged in…
Q: A criminal psychologist is interested in whether individuals in high power corporate positions are…
A: a) The null and alternate hypothesis is H0 : μ1=μ2=μ3 HA : Not all the population means are equal b)…
Q: A travel agency is interested if there is a difference in preference for U.S. city as a favorite…
A: Hypothesis : H0 : There is not significant difference in preference toward favorite U.S. cities to…
Q: A study is made to determine if a cold climate contributes more to absenteeism from school during…
A: Let n1 be the number of students from Baguio x1 be the number of students absent atleast one day…
Q: (i) Use a calculator with sample mean and standard deviation keys to find. and s. (Round your…
A: Since you have posted a question with multiple subparts, we will solve the first three complete…
Q: An article appeared in the Journal of Gambling Issues, in which the authors looked at random samples…
A: The formula for the confidence interval is,Here, confidence level is 0.99.Use EXCEL Procedure for…
Q: From the U.S. Census Bureau's American Community Survey in 2019 it was found that 33.13% of United…
A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…
Q: A research group conducted an extensive survey of 3044 wage and salaried workers on issues ranging…
A: From the provided information, Sample size (n) = 3044 From which 1586 responded "Personal…
Q: Interested in learning more about its fans, the marketing office of the Arena football league (AFL)…
A: Solution: The given information can be writern in table form as Attendend AFL games Not…
Q: In 2014, Scotland was considering independence from England, going so far as to take a referendum…
A:
Q: Do doctors in managed-care plans give less charity care? Researchers chose 60 communities at random…
A: Introduction: It is required to correctly describe the meaning of "significantly less" in this…
Q: According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), and the National…
A: As per honor code, we will only answer first three questions: Given information: P=0.37n=364x=136 A)…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
- A research group conducted an extensive survey of 2940 wage and salaried workers on issues ranging from relationships with their bosses to household chores. The data were gathered through hour-long telephone interviews with a nationally representative sample. In response to the question, "What does success mean to you?" 1470 responded, "Personal satisfaction from doing a good job." Let p be the population proportion of all wage and salaried workers who would respond the same way to the stated question. How large a sample is needed if we wish to be 95% confident that the sample percentage of those equating success with personal satisfaction is within 1.6% of the population percentage? (Hint: Use p ≈ 0.50 as a preliminary estimate. Round your answer up to the nearest whole number.) workersTelemarketers continue to attempt to reach consumers by calling land-line phone numbers.According to estimates from a national 2003 survey, based on face-to-face interviews in 16,677 households,approximately 58.2% of U.S. adults have both a landline in their residence and a cell phone, 2.8% have only cellphone service but no landline, and 1.6% have no telephone service at all. (a) Polling agencies won't call cell phone numbers because customers object to paying for suchcalls. What proportion of U.S. households can be reached by a landline call?(b) Are having a cell phone and having a landline independent?In June 2015, Gallup conducted a poll of a random sample of 14,683 adults to determine the well-being of people living in the United States. One question asked, "Did you exercise at least 30 minutes for 3 or more days in the past week?" In the survey, 58.9% of males and 52.7% of females responded yes to this question. Which of the following is true about this scenario? A. O 58.9% and 52.7% are both parameters. B. O 58.9% and 52.7% are both statistics. C. If we took another random sample of 14,683 adults, we would expect to get the exact same results.
- A research group conducted an extensive survey of 2958 wage and salaried workers on issues ranging from relationships with their bosses to household chores. The data were gathered through hour-long telephone interviews with a nationally representative sample. In response to the question, "What does success mean to you?" 1467 responded, "Personal satisfaction from doing a good job." Let p be the population proportion of all wage and salaried workers who would respond the same way to the stated question. How large a sample is needed f we wish to be 95% confident that the sample percentage of those equating success with personal satisfaction is within 2.6% of the population percentage? (Hint: Use p≈ 0.50 as a preliminary estimate. Round your answer up to the nearest whole number.) USE SALT workersA study compares students who use a website and students who do not use the website. In addition to asking the students in the samples about GPA, each student was also asked how many hours he or she spent studying each day. The two samples (141 students who were users of the website and 68 students who were not users of the website) were independently selected from students at a large, public university. Although the samples were not selected at random, they were selected to be representative of the two populations. n USE SALT For the sample of users of the website, the mean number of hours studied per day was 1.46 hours and the standard deviation was 0.83 hours. For the sample of students who do not use the website, the mean was 2.77 hours and the standard deviation was 0.99 hours. Do these sample data provide convincing evidence that the mean time spent studying for users of the website at this university is less than the mean time spent studying by students at the university who do…According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA) and the National Institutes of Health (NIH), 41% of college students nationwide engage in "binge-drinking" behavior: having five or more drinks on one occasion during the past two weeks. A college president wonders if the proportion of students enrolled at her college who binge drink is actually lower than the national proportion. In a commissioned study, 346 students are selected randomly from a list of all students enrolled at the college. Of these, 135 admit to having engaged in binge drinking.The college president is more interested in testing her belief that the proportion of students at her college who engage in binge drinking is lower than the national proportion of 0.41. What is the P-value? (Round your answer to four decimal places.) P-value =
- A 2015-2016 report stated that hiring over the past year of people with a bachelor's degree increased 8 %, for people with a PhD increased 28 %, and for people with an MBA decreased 25 %. This was based on a voluntary poll of all recent graduates who interacted with at least one of 350 career service centers on college campuses. The survey was answered by 7,500 graduates. What are potential sources of bias with this survey? Select all that apply. O Nonresponse bias O Response bias Sampling biasA market research group is interested in estimating the market share of three airline companies, A, B and C, operating on a particular flight path. These three airlines are the only companies operating on this route. Airline B claim that they have 50% of the business with the remaining percentage shared equally amongst airlines A and C, i.e. 25% each. The market research group decide to carry out an independent study and question a random sample of 97 people visiting an airport on a particular day. Each person was given price, timetables and service details of flights on this route for each of the three airlines. Provided with this information they were asked to select their airline of choice.The survey revealed the following observed frequencies Airline A - 26 Aurline B - 49 Airline C - 22 Test if there is any evidence to suggest that the airline's claim is incorrect, at significance level α = 0.05. Complete the test by answering the following questions : Which of the following is the…According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), and the National Institutes of Health (NIH), 42% of college students nationwide engage in “binge drinking” behavior, having 5 or more drinks in one occasion during the past two weeks. A college president wonders if the proportion of students enrolled at her college that binge drink is actually different than the national proportion. In a commissioned study, 364 students are selected randomly from a list of all students enrolled at the college. Of these, 136 admitted to having engaged in binge drinking. Calculate the statistic for this sample. Calculate the standard error for this sample. Verify that we can use a normal distribution for this sample. By hand calculate a 90% confidence interval for the proportion of all students at this college that engage in binge drinking. Show all work. Interpret the results of your confidence interval in the context of the…
- A movie director who combines dark humor and neo-western in his films is curious about gender preferences about his movies. His team randomly sampled 12 male and 14 female movie fans and had them score one of his movies after watching it. Here are the scores: Males: 85 59 90 81 90 88 87 87 64 82 87 63Females: 79 79 79 83 76 77 74 85 69 75 82 77 72 63 In order to investigate whether there is enough evidence to conclude that males actually like his movies more, the test statistic is Blank 1. Fill in the blank, read surrounding text.and the p-value is Blank 2. Fill in the blank, read surrounding text.. (Hint:Assume the populations are Normal and variances are equal, Use the mean of males as Mu1)An article summarizes a report of law enforcement agencies regarding the use of social media to screen applicants for employment. The report was based on a survey of 734 law enforcement agencies. One question on the survey asked if the agency routinely reviewed applicants' social media activity during background checks. For purposes of this exercise, suppose that the 734 agencies were selected at random, and that you want to use the survey data to decide if there is convincing evidence that more than 25% of law enforcement agencies review applicants' social media activity as part of routine background checks. The sampling distribution of p̂ describes the behavior of p̂ when random samples are selected from a particular population. Describe the shape, center, and spread of the sampling distribution of p̂ for samples of size 734 if the null hypothesis H0: p = 0.25 is true. (Round your answers to three decimal places.)A research group conducted an extensive survey of 2978 wage and salaried workers on issues ranging from relationships with their bosses to household chores. The data were gathered through hour-long telephone interviews with a nationally representative sample. In response to the question, "What does success mean to you?" 1583 responded, "Personal satisfaction from doing a good job." Let p be the population proportion of all wage and salaried workers who would respond the same way to the stated question. Find a 90% confidence interval for p. (Round your answers to three decimal places.) lower limit upper limit