A random sample of 68 households was selected for a phone survey. The key question asked​ was, "Do you or any member of your household own a product from Company​ A?" Of the 68 respondents, 17 said yes and 51 said no.   a. Determine the sample​ proportion, p​ hat, of households that own Company A product. b. If the population proportion is 0.75​, determine the standard error of the​ proportion, use the formula sheet.

Q: Determine the sample size associated with the following formula. Remember to always round up to the…

A: Solution Answer is 112

Q: 12 o.ズ こ \-525000 to ) %31

A: We find value of Vs?

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given: Total number of suspected criminals n= 1604 Number of peoples who are not captured = 1011…

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

A: From the provided information, Margin of error (E) = 0.06 Confidence level = 95% The Z value at 95%…

Q: Because of practical considerations you ultimately decide to survey 100 people and find that 75 of…

A: Solution-: Number of people in survey =100 Number of people prefer to work at home = 75 We want to…

Q: Using a random sample of 3800 TV households, a media research company found that 50.3% watched the…

A:

Q: Step 1 of 2: Suppose a sample of 726 suspected criminals is drawn. Of these people, 232 were…

A: Let p be the population proportion of people who were captured.Given that,No. of suspected…

Q: The U.S. Air Force requires that pilots have heights between 64in and 77in. The heights of women are…

A: Obtain the percentage of woman meeting the height requirement. The percentage of woman meeting the…

Q: A test for heart disease is given to 100,000 patients. The results of the test are shown in the…

A: False positive means healthy people who are identified as sick = 5600 True negative means healthy…

Q: When estimating the population proportion, how large a sample is needed to be 95% confident that the…

A: Given:  The margin of error is equal to 0.05  Confidence Level : 95%  It is asked to compute the…

Q: O 50%

A: Option b 50%

Q: A consumer wanted to find out how accurate Siri (an Apple digital assistant) is, so he asked…

A: From the information, given that Where, X denotes the number of events n denotes the number of…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given that Number of sample =306 Number of captured=100 We have to find the proportion of people who…

Q: Veterinarians often use nonsteroidal anti-inflammatory drugs (NSAIDs) to treat lameness in horses. A…

A: 1 ) Veterinarians often use nonsteroidal anti-inflammatory drugs (NSAIDs) to treat lameness in…

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: According to College Board the scores on the AP History exam are normally distributed with N(72,…

A: It is given that the scores on the AP History exam are normally distributed with N(72, 7.5).

Q: new soft drink is being market tested. It is estimated that 60% of consumers will like the new…

A: Here we want to find standard error.

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: Given information- Margin of error, E = 7% = 0.07 Confidence level, c = 80% Since nothing is known…

Q: According to the results of a survey, 36% of 617 people indicated that American football is their…

A: The formula for the sample size is as given below: n=p1-pZα2E2 Here, zα/2 is the critical value at…

Q: Which is more variable: a sample of 1000 people where p=.05 or a sample of 1000 people where p=0.5?…

A: Given that  Which is more variable: a sample of 1000 people where p=.05 or a sample of 1000 people…

Q: In Oregon, 24.9% of the 1.998 million dosages given have been to people whose vaccination is…

A: Given that  In Oregon, 24.9% of the 1.998 million dosages given have been to people whose…

Q: In a recent study, 46% of people enjoy country music.  If 200 people are surveyed about their…

A: Given : Proportion (prop.) of people enjoy country music p = 46% = 0.46 Sample size of people n =…

Q: According to the results of a survey, 49% of 1448 people indicated that American football is their…

A:

Q: A sample of two hundred and fifty families showed that ninety one owned at least one car. Find an…

A:

Q: A researcher wishes to estimate the proportion of corporate executives whose annual salary is over…

A:

Q: Researchers conducted a survey among 400 doctors to ask the question; "Are you willing to treat your…

A: Given Sample size, n = 400  For a conservative case, we assume that the proportion of  patients…

Q: Some states now allow online gambling. As a marketing manager for a casino, you need to determine…

A: given data, here proportion value is not given so assume that p=q=0.5E= no more than 3%E≤0.03n=?

Q: The formula for sample proportion is                                  p̂=??p̂=Xn Solve for n.

A: We know that,  The proportion of the sample is  p̂= X/n Then,  We will solve for n = ?

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given  thatTotal sample size(n)=871number of people caught =243

Q: An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars…

A: The given data is as follows:Sample size, 363 of them preferred foreign over domestic cars

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

A: The objective of this question is to estimate the proportion of oil tankers that had spills. This…

Q: d. Give a 95% interval estimate of the number of fatal accidents per 1000 licenses in a city where…

A: Solution:  Given information: n= 42  Sample size  MSE= 0.3473  Mean square  error  The degree of…

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

A:

Q: Accident Severity Existing data (year: 1995) (Observed values) Age group of drivers 18-30 30-50…

A: Grand total = 437 Minor injury : Age(18-30) = 82 Age(30-50) = 60 Age (50+) = 120  Proportion =…

Q: America OnLine published a survey question. Among the 2,300 Internet users who responded, 20%…

A: From the given information, America OnLine published a survey question. Among the 2,300 Internet…

Q: What is the standard error of the sample proportion of people that like a product if you have a…

A:

Q: A survey of 500 citizens of a large country revealed that 70 of them believe the government's…

A: Solution : Given that : A survey of 500 citizens of a large country revealed that 70 of them believe…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given n=716 x=279

Q: Before the 2008 presidential campaign, the Gallup Poll asked a sample of 1,000 people for whom they…

A: Given data, n=1000 p=52%=0.52   Let the confidence interval be 95% z-value at 95% confidence is…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: From the given Information ,Sample size , n = 1453number of criminals captured , X = 392We have to…

Q: . A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He…

A: Provided information is, Dr. A. Ventura is interested in determining what kinds and how many pets…

Q: Please double check my answers.

A: Step 1: Calculation of the mean and the standard deviation:CarRearFrontdifference…

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.