Suppose that the local authorities in a heavily populated residential area of downtown Hong Kong were considering building a new municipal swimming pool and leisure center. Because such a development would cost a great deal of money, it first of all needed to be established whether the residents of this area thought that the swimming pool and leisure center would be a worthwhile use of public funds. If 243 out of a random sample of 360 residents in the local area thought that the pool and leisure center should be built, determine with 95% confidence the proportion of all the local residents in the area who would support the proposal.

Q: rtune magazine reported the results of a survey on executive training that was conducted by the…

A:

Q: An employee claims that 20% of the email she receives is personal, 60% is work related, and 20% is…

A: Given data An employee claims that 20% of the email she receives is personal 60% is work related and…

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: *Answer: .

Q: hypothesis H0:p=0.65 where p is the proportion of all adults in the city who meet or exceed the…

A: Given that  n=400 , X=245 , p0=65%=0.65 p=X/n

Q: Because 25 percent of the students in my morning statistics class watch eight or more hours of…

A:

Q: A pet food company has a business objective of expanding its product line beyond its current kidney…

A: rovided:   Kidney  Shrimp  Chicken Liver Salmon  Beef   2.37 2.26 2.29 1.79 2.09   2.62 2.69…

Q: A local government official observes an increase in the number of individuals with cardiovascular…

A: Given data is0.5,0.7,0.9,1.1,1.2,1.3,1.4,2.0,2.3,2.4,2.7,3.0

Q: Based on prior data, 70% of a certain population have children, 50% have pets, and 30% have both…

A: 70% : percentage of population with children, nC50% : percentage of population with pets, nP30% :…

Q: A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self-…

A: Let p1 denotes the proportion of workers who have never taken a self- improvement course. Let p2…

Q: A manufacturer of cell phone screens is concerned because 12 percent of the screens manufactured…

A: Here, the claim of the test is that the new process reduces the population proportion of screens…

Q: Hi I am having difficulty answering this problem and need help, thank you.

A: Hey, since there are subpart questions posted, we will answer first three parts. If you want any…

Q: A law firm is trying to decide whether to represent car owners in a class action lawsuit against the…

A: The firm will handle the lawsuit only if it is convinced that more than 5 percent of cars of this…

Q: In a random sample of 251 potential voters registered in the state of Utah, 92 indicated that they…

A: Given data: Significance level = 0.01

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

A: Let 'X' be the random variable representing the number of customers who order their food to go by.…

Q: A corporation randomly selects 150 salespeople and finds that​ 66% who have never taken a…

A: A corporation randomly selects 150 salespeople and finds that​ 66% who have never taken a…

Q: n New York City, a study was conducted to evaluate whether any information that is available at the…

A: (a) Obtain the sample size of a preliminary estimate for p is 0.10 with the 95% confidence. The…

Q: The Human Resources Manager of a factory tries to reduce the staffing costs by hiring and laying off…

A: a).The sample mean is defined as the ratio of sum of all observations by the total number of…

Q: A large national bank determines if each of its branches is profitable or not profitable.…

A: As per guidelines expert have to answer first question only.

Q: 12. Researchers at VCU studied fatal auto accidents between cars in which one has an air bag and the…

A: The population proportion by the sample proportion is calculated using the formula where is the…

Q: A large national bank determines if each of its branches is profitable or not profitable.…

A: a)   Profitable Not Profitable Total Urban 64 17 81 Suburban 39 22 61 Rural 18 15 33…

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: Obtain the probability that the mean taxable wages in James sample of 54 counties will be less than…

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: Central limit theorem:   If the size of the samples taken from the population are sufficiently…

Q: A quality control specialist took a 20-sized random sample from a 100-sized batch and analyzed it…

A: a.) here we have N= 100 n=20  c= 2  using poisson approximation to hyper geometric distribution the…

Q: In a random sample of 207 potential voters registered in the state of Mississippi, 62 indicated that…

A:

Q: The Environmental Protection Agency is considering inspecting 6 plants for environmentalcompliance:…

A: First use combination formula to obtain the possible number of combinations.

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: Given data, μ = 28.29 σ = 33.493 n = 56

Q: A doctor used to believe that babies were equally likely to be born any day of the week, but with…

A: Test is that whether babies are twice as likely to be born on a weekday (Monday through Friday) than…

Q: 11 students enterin the College of Computing with a B average had lost their HOPE scholarship by the…

A: p1 = 73/137 = 0.5328 p2 = 72/111 =0.6486 n1 = 137n2 = 111

Q: 2. Based on past records, it is generally believed that on an average, a typical University of…

A: Answer is given below:

Q: A large pizza chain has conducted a study to determine if the types of preferred pizza are…

A: Given :  A large pizza chain has conducted a study to determine if the types of preferred pizza are…

Q: A manufacturing company with 350 employees is changing the employee health insurance plan to either…

A: The conditions for chi-square test for homogeneity are: The sampling method is simple random…

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: Let, X: The total taxable earnings, in millions, of all wage earners in a county.  X: The mean of…

Q: The prime Minister of a small Caribbean Island stated that 95% of the population was vaccinated from…

A: Given data number of success , x= 240 sample size, n =300 population proportion,p=…

Q: researcher is interested in factors related to academic performance of students.  She hypothesized…

A: Given : Test-statistic of 23.75 and a p-value of 0.0006.

Q: A plan for an executive travelers' club has been developed by an airline on the premise that 5% of…

A: (a) Null hypothesis: The probability of the customer who qualified for membership is correct.…

Q: A pet food company has a business objective of expanding its product line beyond its current kidney…

A: The hypothesis test is a statistical method in which one using the sample data try to check the…

Q: In a random sample of 215 potential voters registered in the state of Kentucky, 107 indicated that…

A: It is given that a random sample of 215 potential voters registered in the state of Kentucky, 107…

Q: A manufacturing company with 350 employees is changing the employee health insurance plan to either…

A: Plan A Plan B Total Yes(Group 1) 40(32.5) 20(27.5) 60 No(Group 2) 6(13.5) 19(11.5) 25 Total…

Q: 1. The Brazilian Forest Service (Servico Florestal Brasileiro, SFB) is faced with the need to…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Recently, the number of airline companies that offer in-flight Wi-Fi service to passengers has…

A: Given Information: Sample size (n) = 125 X = 20 Sample proportion (p^) = xn=20125=0.16 It is…

Q: In the year 2018, 23% state citizens who voted in person had to wait in line for more than two…

A: The proportions are similar to the probability calculation. It provide the likelihood happening of…

Q: Recently, the number of airline companies that offer in-flight Wi-Fi service to passengers has…

A: Given that  Sample size n =160 Favorable cases x =25 Sample proportion π^=x/n  =25/160 =0.1563…

Q: A doctor used to believe that babies were equally likely to be born any day of the week, but with…

A: The claim that babies are twice as likely to be born on a weekday (Monday through Friday) than on a…

Q: ide the necessary information? A) A random sample of all fishermen in the state B) A random sample…

A: The state Department of Natural Resources is considering lowering the bag limit on Walleyed Pike on…

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: We have given that.   X~N( μ , ?^2 )   μ=28.29  , ? =33.493 , n=54   Z-score =( x - μ )/?

Q: A Pew Research Center report published on February 2, 2022 says, “In a national survey by Pew…

A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of…

Q: A school nurse believe that 5% of the Grade 7 students have below normal Body Mass Index (BMI) and…

A: 1) TWO TAILED TEST 2)ONE TAILED TEST Logic- 1)here claim is the null hypothesis which is   H0:…

Q: In a survey of 1,000 women aged 22 to 35 who work full time, 555 indicated that they would be…

A: Given that,possible chances (x)=555sample size(n)=1000success rate ( p )= x/n = 0.555success…

Q: The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and…

A: = 28.29   =  33.493 n = 56 P( < 33) = 1 - P( < 33) = 1 - P[( -  ) / /n < (33 - 28.29) /…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.