A student wants to survey the sophomore class of 200 students about whether the school should require uniforms. A random sample of 18 sophomores is surveyed and asked whether they support the school adopting uniforms, and three students said yes. The student wants to construct a 95% confidence interval for the proportion of sophomores who favor the adoption of uniforms. Are the conditions for inference met? Yes, the conditions for inference are met. No, the 10% condition is not met. No, the randomness condition is not met. No, the Large Counts Condition is not met.

Q: In May of 2002, the Gallop Organization asked a random sample of 500 American adults this question:…

A: Given,   Sample size = 500 Sample proportion = 0.52   Critical value: Using z-table, the z-critical…

Q: Let X be the outcome of rolling a fair six-sided dice. The possible outcomes for X are 1,2,3,4,5 and…

A: X 1 2 3 4 5 6 P(X) 1/6 1/6 1/6 1/6 1/6 1/6

Q: A therapist wanted to determine if yoga or meditation is better for relieving stress. The therapist…

A:

Q: A phase three clinical trial for a new medication proposed to treat depression has 1191…

A: It is an important part of statistics. It is widely used.

Q: A graduate Statistic Student wants to estimate the true proportion of county college ( "c.c.")…

A: we have given that  sample size N=100 ,favorable cases X=64 sample proportion P^=X/N

Q: In studying his campaign plans, Mr. Singleton wishes to estimate the difference between younger…

A: sample size(n1)=769x1=497sample size(n2)=703x2=390confidence level=90%

Q: A telephone service representative believes that the proportion of customers completely satisfied…

A: See the handwritten solution

Q: confidence inferval for the actual percentage of students who want to pursue a college course.…

A: here from given  n = sample size  = 600 x= no of student expressed interest to purchase a college…

Q: You are the manager of a grocery store. Lately, customers have been complaining about the eggs they…

A:

Q: In a survey of 464 registered voters, 143 of them wished to see Mayor Paz lose her next election.…

A:

Q: he data given to the right includes data from 40 ​candies, and 7 of them are red. The company that…

A: given data, 7- red candies 40-total candies p^=xn=740=0.175CI=0.90α=1-0.90=0.10

Q: A researcher was interested in knowing how many people in the city supported a new tax. She sampled…

A:

Q: Most married couples have two or three personality preferences in common. A random sample of 382…

A: We have given that  Sample size n1= 382 , n2= 562  Favorable  cases x1 = 136 , x2 = 212 I want to…

Q: Most married couples have two or three personality preferences in common. A random sample of 390…

A:

Q: Out of all the students that attend Yale University, 1,982 were selected to participate in a school…

A:

Q: A researcher wanted to check whether the percentage of Canadian adults with obesity has decreased in…

A: Number of Canadian adults in 2005= 75 Number of Canadian adults in 2009 = 120   significance level =…

Q: Arandom sample of 197 students was asked how many songs were in their digtal music library and what…

A: * SOLUTION :-    from the given information the answer is provided as below ,

Q: The career center at a large university surveyed a random sample of students who graduated the…

A: First, we need to calculate the proportions of engineering and business majors who were able to find…

Q: periment with peas resulted in one sample of offspring that consisted of 419 green peas and 159…

A: a. The value of z at 95% confidence level is 1.96 (from z table). The sample proportion is computed…

Q: Most married couples have two or three personality preferences in common. A random sample of 386…

A: Given Data For Sample 1 n1 = 386 x1 = 124 For Sample 2 n2 = 562…

Q: A 95% confidence interval for the average salary of all CEOs in the electronics industry was…

A: Given Sample size =40

Q: The researchers found that 53% of the women and 56% of the men believe that the U.S. federal…

A: In order to determine whether the difference between the proportions of women and men who believe…

Q: confidence interval estimate of the percentage of red candies. What do you conclude about the claim…

A: From provided information, company claims that 29% of candies are red. Out of 41 candies, 9 are red.…

Q: search for the Ford Motor Company, you find that a random sample of 800 households includes 721 in…

A: At 98% confidence level, the z value is 2.33 which can be obtained by using the standard normal…

Q: A student wants to survey the sophomore class of 200 students about whether the school should…

A: Givensample size(n)=50x=12p^=xn=1250=0.24confidence level = 90%

Q: You drop by your local independent coffee shop on your way to class. While standing in​ line, you…

A:

Q: Elly and Drew work together to collect data to estimate the percentage of their classmates who own a…

A: Given that Elly and Drew work together to collect the data to estimate the percentage of their…

Q: A sample of 30 high school basketball players was taken and whether or not they plan to play…

A: The provided information is as follows:The sample size is .A 95% confidence interval for  is (67%,…

Q: A poll found that people from the north now have relatively warm feelings toward people from the…

A: From the given information, let X be the number of northerners who consider two region friends.  X =…

Q: A survey of 225 randomly chosen commuters are asked if they support an expanded public…

A:

Q: 2. A large university conducted a sample survey of 100 first-year students and 100 seniors. Both…

A: given that,sample one, x1 =32, n1 =100, p1= x1/n1=0.32sample two, x2 =38, n2 =100, p2=…

Q: A ketchup manufacturer is in the process of deciding whether to produce an extra spicy brand. The…

A: It is given that out of 6000 households, it is found that the extra spicy ketchup is purchased by…

Q: . Jordan operates a dental practice with 315 patients and she would like to estimate the proportion…

A: Given X=30 n=75 Significance level=1-0.90=0.10

Q: A teacher has a large container of blue, red, and green beads. She wants her students to estimate…

A:

Q: A random sample of 400 people is selected from Atlantic Canada. They are asked about their views on…

A: According to the given information, we have Given that a random sample of 400 people is selected…

Q: A high school is running a campaign against the over-use of technology in teens. The committee…

A: sample size(n1)=200sample proportion()=0.85sample size(n2)=180sample proportion()=0.55confidence…

Q: f 260 employees selected randomly from one company, 18.46% of them commute by carpooling. Construct…

A: Given data, n=260 p=18.46% =0.1846 z-value at 98% confidence is Zc=2.326

Q: A survey was conducted of visitors to the Jakarta Fair. For this reason, two groups of samples were…

A: There are totally 500 visitors for women in which 325 people said they were satisfied with the…

Q: In a statistics activity, students are asked to determine the proportion of times that a spinning…

A: Given : The students are instructed to spin the penny 10 times and record the number of times the…

Q: A marketing consultant wants to estimate the proportion of all shoppers at a certain mall who make…

A: n= 132x = 104P^ = xn = 104132 = 0.7879

Q: At a local college, an admissions officer surveys the incoming class of 1,000 first-year students…

A: Let X be the number of students intend on majoring in liberal arts and n be the sample size. From…

Q: A random sample of 120 students at a high school was asked whether they would ask their father or…

A:

Q: In a statistics activity, students are asked to determine the proportion of times that a spinning…

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.