Harley Davidson motorcycles make up 13% of all the motorcycles registered in the United States.You plan to interview an SRS of 469 motorcycle owners. What is the approximate distribution of the pro

Q: In order to get patients opinion about the services provided to them by a hospital, a sample of 500…

A: A systematic type of sampling is the sampling in which every kth member is selected to gather a…

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

A: There are 153 out of 360 (n) elementary school children found as above grade level readers. The…

Q: A manufacturer produces 54-pound lifting weights. The lowest actual weight is 40 pounds, and the…

A: Solution

Q: In 1945​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: Given α=0.05         n1=1100       (for recent survey)n2=1100       (for in 1945 survey) x1…

Q: A recent survey of 537 California college students found that 481 had taken an online class in the…

A:

Q: A newspaper posted this question on its​ website: "How often do you seek medical information​…

A: Voluntary response sample:If the sample made up of volunteers or self-selected participants then the…

Q: In 1945, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Solution: Given information: n1= 1100 Sample size of adults in 1945 survey  x1= 352 adults indicates…

Q: (b) Has the proportion of adults who totally abstain from alcohol changed? Use the a = 0.10 level of…

A: Here it is given that , of the 1100 adults surveyed, 352 indicated that they were total abstainer.…

Q: In 1940, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Let p1 represents the population proportion of 1940 adults who were total abstainers and p2…

Q: In your "Introduction to College Mathematics" class last semester, the instructor gave four tests.…

A: Given Scores90, 86, 70 , 80Possible sample size will be 1,2,3,4The data has been entered into excel…

Q: what is the 95th percentile in the t-distribution if the sample size is 25?

A: Given Information: n=25Type of distribution=t distributionTo calculate=95th percentile

Q: A factory for the production of light bulbs took a random sample of 200 units and found that 18 of…

A: The sample size is N=200N = 200 the number of defective cases is X=18X = 18 and the sample…

Q: Have you ever opened a bag of M&Ms and been surprised at the distribution of colors? We are going to…

A: Given information: Color Brown Red Yellow Orange Green Blue   Count 14 11 10 37 11 19 102…

Q: If the population  of ABM student of Malaya integrated high school has a mean of 14.45,what is the…

A: Given information: The mean of ABM students of Malaya integrated high school is 14.45. That means,…

Q: Did the samples shown most likely come from the same population, or two different populations? If…

A: Given :

Q: In 1945​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: In 1945 survey, among 1100 adults 407 indicate that they were total abstainers. The number of…

Q: In 1949, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Given: n1=1100x1=374p1=0.34n2=1100x2=330p2=0.30

Q: In 1945, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Null and alternative hypotheses: The hypothesis which is tentatively fixed up under and tested for…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: Let p denotes the population proportion of driver fatalities related to alcohol. The test is that…

Q: high school athletic director is asked if basketball players are doing as well academically as the…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A:

Q: A sample of 426 U.S. adults age 50 and older were asked how important a variety of issueswere in…

A: Introduction: A population in Statistics is defined as the collection of all possible objects,…

Q: In 1945, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Let, X1= number of abstainer in the previous test n1= total sample size of the past test p1^ =…

Q: Suppose a clothing store wants to determine the current percentage of customers who are over the age…

A:

Q: In 2017, a website reported that only 10% of surplus food is being recovered in the food-service and…

A: Introduction: Denote p as the true population proportion of surplus food that is being recovered in…

Q: Assume that 26% of students at a university wear glasses. Suppose 300 students are randomly…

A: It is given that Sample size n = 300 Population proportion p = 0.26

Q: In 1944​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: We habe to find given proportion.

Q: Teip An advocacy organization surveys 967 citizens of country A and 182 of them reported being born…

A: Sample proportion: Sample proportion is the proportion of individual in a sample with specific…

Q: In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests.”…

A: The number of buses in the sample (n) is 200.

Q: 2. A poll done by Kellogg Corporation asked a random sample of 500 high school students whether they…

A: Given that the sample size is 500 and the population proportion is 60%. a) The mean of the sampling…

Q: To study the mean blood pressure of all people in her state, Christine samples the population by…

A:

Q: In 1941​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: In 1941​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

Q: Amanda is writing an article for the school newspaper about social media use among teens. She wants…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks   A random sample…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: State the hypotheses. That is, there is no evidence that population proportion of driver fatalities…

Q: According to the Internal Revenue Service, 75% of all tax returns lead to a refund. A random sample…

A: From the provided information, 75% of all tax returns lead to a refund so the population proportion…

Q: The following are data on the number of children for a random sample of 20 households in the city of…

A: Data arranged in nondescending order 1 1 1 1 1 2 2 2 2 2 3 3 3 3 4…

Q: calculate the mean score of the students identify the modal score identify the median score

A: Note: According to Bartleby expert guidelines, we can answer only first question with their three…

Q: In 1949, an organization surveyed 1100 adults and asked, "Are you a total abstalner from, or do you…

A: Given : x1=374n1=1100p^1=0.34x2=330n2=1100p^2=0.30We want to find the value of test stitistic.

Q: A person took a sample of 200 people to see the relationship between those who liked the movies…

A: Consider the given conditional distribution table. We need to find the conditional distribution of…

Q: A university dean is interested in determining the proportion of students who receive some sort of…

A:

Q: In 1949, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: We have to find null and alternate hypothesis.

Q: A company is started by four friends. The company was Erica’s idea, so she wants to fill 70% of the…

A: Chi-square test- The use of this test is to check how likely the observed frequency will be if we…

Q: In 1946, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Let p1 be the proportion of adults took the survey in 1946 and p2 be the proportion of adults took…

Q: A telecommunications company knows that 90% of their customers own smart phones. Ten customers are…

A: Let "X" be the customers who own smartphones. The variance of the binomial distribution is given by

Q: You randomly selected one sample of 40 citizens of your city to see if they wanted to increase taxes…

A: See the solution

Q: A substitute teacher wants to know how students in the class did on their last test. He asks only…

A: Step 1 The sample is 10 students sitting in the front row as the teacher asked only those 10…

Q: You want to gather some data about students at a local high school. Match the name of the sampling…

A: given

Q: A university dean is interested in determining the proportion of students who receive some sort of…

A: Given: Confidence level=95%Margin of error E=2% From the Standard Normal Table, the value of z* for…

Q: suppose you select a simple random sample of 75 douglas college student and you find that 8 are left…

A: It is given that the sample size n is 75 and x is 8.

Q: In one particular rainforest in Tasmania, it has been found that 70% of the trees are eucalyptus…

A: The categorical variable is trees, it has 3 types. Those are eucalyptus trees, Australian black wood…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.