A researcher wishes to estimate the number of households with two computers. How large a sample is needed in order to be 99% confident that the sample proportion will not differ from the true proportion by more than 6%? A previous study indicates that the proportion of households with two computers is 47%. Round to the nearest whole number. Group of answer choices 560 459 929 1135

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

A: It is given that margin of error (E) is 0.045 and the confidence level is 0.99.

Q: Make 1 real-life problem with a solution in any of the following topics; 3. Preforming hypothesis…

A: One sample proportion test is used to compare the sample proportion to a specified proportion of the…

Q: or the population of 31 companies surveyed, with an average size of 1,414 workers? What type of…

A: Given  Average size = 1414 Companies = 31 The total population will be = 31*1414 =43834

Q: You take a sample of the heights (in inches) of 12 professional basketball players. The data are:…

A: Given data: 79, 76, 77, 79, 81, 83, 79, 76, 78, 83, 87, 85.

Q: When taking a 32 question multiple choice test, where each question has five possible answers, it…

A:

Q: A researcher wishes to estimate the number of households with two cars. How large a sample is needed…

A: Given :Margin of error:ME = 0.06sample proportion:p̂ = 0.23

Q: There are 30,000 adults living in Oak City. In examining attitudes toward the news, a research group…

A:

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

A: By using the standard normal table, the critical value zα2 at the 99% confidence level is, 2.576.…

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 = 4.5% = 0.045 90% confident  Level of significance = 10% = 0.10

Q: A consumer group surveyed 146 airplane travelers after a flight and found that 132 of them would fly…

A:

Q: On a multiple choice test with 25 questions, each question has four possible answen is correct. For…

A: We have to find mean  of correct answerfor given data ...

Q: A Pew Internet poll asked 4272 U.S. adults about their use of smart watches and fitness trackers. A…

A: Given that  Total Number of adults about their use of smart watches and fitness trackers n = 4272…

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

A: Given Information:Margin of error, E=1.5%=0.015Confidence level, c=95%=0.95

Q: a. How many students received a "D"? students E b. If a "C" or better is required to take Statistics…

A: From given data we have : Total Number of students = 200

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

A:

Q: Out of 300 people sampled, 153 said they prefer Coke over Pepsi. What is the point estimate for the…

A: Consider that p is population proportion of ALL people that prefer Coke over Pepsi.

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: . A student wants to determine whether people i arming. After a lesson on global warming, she…

A: According to the Bartleby guideline only one question can be solved at one time, post the remaining…

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

A: The confidence level is 90%, the sample percentage is within 4.5 percentage points of the true…

Q: when you have to find a sample number. you usually round to the whole number no matter how small the…

A: We have to obtain the method for obtaining the sample size when the sample number came in the…

Q: At a factory that produces switches, a batch of 4000 switches has just been produced. To check the…

A: Given that a sample of 175 switches was picked and among them 9 were defective.  So based on this…

Q: 1. What are the null and alternative hypotheses? Ho: p= 0.5000 Ha: p>0.5000 2. Calculate the null…

A: Given: No. of crashes occur, x=107 Sample size, n=195

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

A: Given,margin of error(E)=0.055

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

A: a)

Q: n IQ test is designed so that the mean is 100 and the standard deviation is 16 for the population of…

A: Given: μ=100, σ=16 and SE=8.   The formula of standard error is SE=zσn

Q: 6. Five hundred college graduates were asked how much they donate to their alma mater on an annual…

A: Mode: Mode may be defined as the maximum number of observation

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

A: Solution

Q: Use the results from a survey of a simple random sample of 1077 adults. Among the 1077 respondents,…

A: Given:n = 1077p̂ = 71% = 0.71p = 13/20a. Actual number of respondents who rated themselves as above…

Q: pose that 45% of people nationwide support capital punishment. If we take a sample from the…

A: 45% of people nationwide support capital punishment. Sample proportion is  p = 0.45

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A:

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

A:

Q: A medical researcher wants to do a study on the proportion of knee replacement surgeries that result…

A:

Q: You are told that the proportion of those who answered "no" to a political survey is 0.60, and that…

A: Given Information: Proportion of those who answered "no" to a political survey is 0.60 i.e., p=0.60…

Q: Use the results from a survey of a simple random sample of 1077 adults. Among the 1077 respondents,…

A: Step 1:Total sample size is 1077Percentage rating themselves as above-average is 71% is 0.71Step…

Q: According the April 12, 2017 Pew Research survey, 58% of Americans approve of U.S. missile strikes…

A: (3) Determine whether the normal approximation can be used with the given distribution or not?…

Q: COLOR THEME O ZOOM 13. Kiara is rolling an 1-6 number cube four times. What is the chance that she…

A: We are asked find the probability.

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

A: Confidence Interval=95%Margin of error(E)=3.5%=0.035

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A:

Q: A marble manufacturer advertises that its bags of marbles will contain 25% "milky-white" marbles.…

A: In the context, the sampling percentage of milky-white marbles, p̂ is 25%. The total number of…

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

A:

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

A:

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.