When 345 HS students were surveyed, 125 said that they completed a driver's education class prior to turning 16. Find a point estimate for p, the population proportion, of students who completed a driver's education class prior to turning 16.

Q: In order to have a margin of error of 2%, people should be surveyed.

A: we are given that 24% people consider summer as their favourite season (p) = 0.24 to find  number of…

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A: It is given that 110 students at a college where 69 students said that they had completed their…

Q: A Pew Research study estimates that 803 million people live in poverty today, after the 2020 global…

A: It is given that 803,000,000 people live in poverty today, out of 7,754,000,000 people worldwide.

Q: A survey of 2390 musicians showed that 304 of them are left-handed. Find a point estimate for p, the…

A: Here Given sample size= n=2390                                         X=304

Q: The men hired by a certain city police department must be at least 69 inches tall. If the heights of…

A: Given μ=70 inches and σ=2 inches We need to find, Z=X-μσ=69-702=-12=-0.5 Now to find the required…

Q: What is the median score achieved by a student who recorded the following scores on 10 math quizzes?

A: What is the median score achieved by a student who recorded the following scores on 10 math…

Q: 99 students at a college were asked whether they had completed their required English 101 course,…

A: The point estimate of population proportion is sample proportion.

Q: 104 concert-goers at the Glass House in Pomona, California were asked if they know how to play an…

A: Here it is given that- Number of concert goers  = 104 Number of concert goers who can play an…

Q: A random sample of 324 residents of a community revealed that 30% were very satisfied withthe…

A: Given that, Critical values: By using the standard normal table of Z, the critical value for two…

Q: 135 students at a college were asked whether they had completed their required English 101 course,…

A: Point estimate: The population parameter which is estimated by using sample statistic is termed as…

Q: In a sample of 508 men who worked at home, 32% of them were college graduates. a.) Among the 508 men…

A:

Q: How many of your batchmates have you surpassed if your graduation rank in high school is 56th…

A:

Q: Based on the data, what is the most reasonable estimate for the number of The Foodies members whose…

A: In the bar graph: Total no. Of member select = 6+5+14+8+2= 35 No. Of people who prefer Italian = 14…

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: Find an estimates of the average number of accidents per week in two different junctions.

A: Here given, Speed cameras (SC) are used to reduce the risk of accidents in accident-prone zones in…

Q: Provide an appropriate response. When 390 junior college students were surveyed,115 said that they…

A: It was given that 115 out of 390 junior college students have previously owned a motorcycle.

Q: A manager at e-Bay wants to determine the current percentage of U.S. adults who now use the…

A: Obtain the sample size of a preliminary estimate for p is 0.73 The formula of sample size is, Use…

Q: 129 students at a college were asked whether they had completed their required English 101 course,…

A: The point estimate of population proportion is sample proportion.

Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050 females, 746…

A: There are two dependent variables which are males and females. The independent variable is using of…

Q: A random sample of 302 Californians found that 129 support Measure A. Build a 88% Cl for the…

A: Given that  Random sample size (n) = 302 Supported measure A = 129   Sample proportion (p) =…

Q: The mean age of a combined group of men and women is 30 years. If the mean age of the group of men…

A:

Q: All patients admitted to a particular hospital can be released on the same day or kept overnight for…

A:

Q: The Arizona Department of Transportation wishes to survey state residents to determine what…

A: Solution-: Given: M.E.=0.03,α=0.01, We take, p^=0.5 and  q^=0.5  We find how many residents do they…

Q: At the local college, a study found that students earned an average of 9.2 credit hours per…

A: From the given information, The average number of credit hours per semester is, x=9.2 The random…

Q: According to a survey, 59% of parents say their teens are addicted to using their cell phones. Write…

A: Given data is :  59% of parents say their teens are addicted to using their cell phones To write…

Q: An entertainment company surveyed 360 elementary school children and found that 153 of them idolized…

A: Given that, x = 153n=360 The formula of point estimate of the population proportion is sample…

Q: of the population have high school scores less than 77?

A:

Q: A uSa today/CNN/Gallup survey of 369 working parents found 200 who said they spendtoo little time…

A: It is given that the number of parents said they spend too little time with their children because…

Q: Out of 147 faculty members at Bellevue University, 13 said they can speak Spanish. Construct and…

A:

Q: 94 students at a college were asked whether they had completed their required English 101 course,…

A: We have given that the total number of students at a college, n = 94 favourable number of cases, X =…

Q: In a survey 300 adults were interviewed, 123 said they had yearly medical checkup. Find the 95% for…

A: Sample size is n = 300 Number of adults who had yearly medical checkup, X = 123 The critical value…

Q: A pharmaceutical researcher wants to determine the proportion of people who believes that branded…

A: For the given data n = ?

Q: A pharmaceutical researcher wants to determine the proportion of people who believes that branded…

A: Given that  Margin of error =E =1%=0.01 95% confidence.

Q: An entertainment company surveyed 360 elementary school children and found that 153 of them were…

A:

Q: 256 math majors were asked whether they had completed theirscience requirement, and 97 said "yes".…

A:

Q: On a recent survey, 60% of people said they preferred walking to running. If 540 people liked…

A: Number of people who liked walking = 540 Percentage of people who like walking = 60%

Q: A USA Today/CNN/Gallup survey of 369 working parents found 205 who said they spend too little time…

A: Givenn=369x=205

Q: 86 students at a college were asked whether they had completed their required English 101 course,…

A: Point Estimate of Population proportion (P) = p^ = xn

Q: In a Harris poll of 2302 adults, 14% said they have a tattoo. Approximately how many adults have a…

A: Given information- We have given that in a Harris poll of 2302 adults, 14% have a tattoo. We have to…

Q: According to the results of a survey, 40% of 396 Leople indicated that American football is their…

A: Given Data: p^=0.4   Margin of error=0.04   Assuming significance level of 0.05 z0.05/2=1.96

Q: 85 students at a college were asked whether they had completed their required English 101 course,…

A: Best point estimate:The best point estimate of population proportion is the sample proportion.

Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050females, 746…

A: From the provided information,

Q: A Pew poll taken in 2010 surveyed 830 people aged 18-29 and found that 166 of them had one or more…

A:

Q: 114 students at a college were asked whether they had completed their required English 101 course,…

A: From the provided information, the total students of collage (n) = 114The number of students who…

Q: 104 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: 101 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: 88 students at a college were asked whether they had completed their required English 101 course,…

A: Given: Total number of students in college were asked whether they had completed their required…

Q: In a poll of 480 universities students, 220 said they were opposed to legalizing marijuana estimate…

A: We have to find correct answer..

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.