According to a New York Times/CBS News poll conducted during June 24-28, 2011, 55% of the American adults polled said that owning a home is a very important part of the American Dream (The New York Times, June 30, 2011). Suppose this result was true for the population of all American adults in 2011. In a recent poll of 1770 American adults, 60% said that owning a home is a very important part of the American Dream. Perform a hypothesis test to determine whether it is reasonable to conclude that the percentage of all American adults who currently hold this opinion is higher than 55%. Use a 10% significance level, and use both the p-value and the critical-value approaches. Round your answers for the observed value of z and the critical value of z to two decimal places, and the p-value to four decimal places. Zobserved i

Q: ) What conclusions can be drawn from this hypothesis test?

A: a) H0:μ=15.7VersusHa:μ<15.7   Level of significance valueα=0.05 Test statistic value of T = x-μsn…

Q: Consider the first sample to be the sample of people over the age of 55 and the second sample to be…

A: Given : p^1=sample proportion who dream in black and white over the age of 55=60303p^2=sample…

Q: What is the purpose of writing down and testing the null hypothesis?

A: Hypothesis is performed to test that whether the thing we believe in actually right or not.

Q: According to national data, 17% of U.S. college students are a member of a sorority or a fraternity.…

A: Q.1 - Solution : Given that :-According to national data, 17% of U.S. college students are a member…

Q: The mayor of Lawrenceville indicated in a news interview that the percentage of students at GGC…

A: GivenThe claim isThe mayor of Lawrenceville indicated in a news interview that the percentageof…

Q: What is meant when we say that a hypothesis test is a. exact?b. approximately correct?

A:

Q: What is the aim of hypothesis testing? What does hypothesis testing achieve that could not be…

A: Hypothesis:Hypothesis is an assumption about the parameter of the population which will be made on…

Q: According to the 2010 Census, 16% of people in the United States are of Hispanic or Latino origin.…

A: a. Let p be the population proportion of Hispanic people than the nation as a whole and questions…

Q: What is the aim of hypothesis testing? What does hypothesis testing achieve that could not be…

A: Hypothesis testing is a statistical procedure that can be used to analyse the sample data and test…

Q: In a research report, the term "significant" is used when the null hypothesis is rejected Select…

A: We know that when we said that a test is significant, we always reject the Null Hypothesis  This…

Q: In a survey of 240 students in an elementary statistics class at the University of California-Davis…

A: Given that : n=240                     x=19(Left handed)x=221(Right handed) By using one sample…

Q: The National Center for Education Statistics would like to test the hypothesis that the proportion…

A: GivenThe national center for education statistics would like to test the hypothesisthat the…

Q: The Adecco Workplace Insights Survey sampled men and women workers and asked if theyexpected to get…

A:

Q: The National Center for Education Statistics would like to test the hypothesis that the proportion…

A:

Q: Among a simple random sample of 331 American adults who do not have a four-year college degree and…

A: a) Given, n=331 p^=0.48 Hypothesis: H0:p=0.5 H1:p<0.5 Level of significance = 0.05 ( assuming)

Q: According to a recent​ census,16% of the people in the United States are of Hispanic origin. One…

A: Hypotheses:Denote P as the true population proportion of people in United States of Hispanic…

Q: Is there a difference in the car brands countries for Midwesterners and people from the west coast?…

A:

Q: The Adecco Workplace Insights Survey sampled men and women workers and asked if theyexpected to get…

A:

Q: According to the Centers of Disease Control, about 22% of American young people between the ages of…

A:

Q: Which of the following is not among the steps in Hypothesis Testing?

A: Here We will list the Steps for Hypothesis Test

Q: what might a alternative hypothesis be called?

A: Hypotheses: Hypotheses is the plural form for hypothesis. Hypothesis is a statement about the…

Q: The Adecco Workplace Insights Survey sampled men and women workers and asked if theyexpected to get…

A: In a survey, 74 out of 200 women and 104 out of 200 men replied yes when they were asked that if…

Q: What is the null and alternative hypothesis?

A: Test is that whether mean time for painting a medium-sized room without using the tool is greater…

Q: According to the Centers of Disease Control, about 22% of American young people between the ages of…

A: Givenabout 22% of the american young people between the ages of 12 and19 are obeseclaim is that the…

Q: What is step 5 of hypothesis testing ?

A: Step 1: Specify the Null hypothesis and Alternative hypothesis. In this step, will describe the…

Q: what is the zobserved value for the hypothesis test?

A: It was stated that I believe that caffeine can improve the capacity of short-term memory (STM). It…

Q: According to a New York Times/CBS News poll conducted during June 24-28, 2011,55% of the American…

A: Let p denotes the true proportion of the people that believe that owning a home is an important part…

Q: If you make a Type 1 decision error in your hypothesis test, what has happened?

A: Type 1 error happen when  rejecting null hypothesis when it is true

Q: If you make a Type I decision error in your hypothesis test, what has happened?…

A:

Q: health provider saw that 48% of their members received their flu shot in recent years. The health…

A: Hypothesis testing plays a major role in research and development. To diagnose the underlying cause…

Q: 2. Is the hypothesis above a one-tail or a two-tail hypothesis?

A: We have given that  Sample size n= 1000 Favorable cases x = 89 Sample proportion p^=x/n

Q: Define the Goal of hypothesis testing?

A: A statistical hypothesis is an assumption about a population parameter. Hypothesis testing refers to…

Q: An ice cream company is interested to see if the proportion of people in this town who like…

A: Solution: It is given that 50% of people nationally choose chocolate as their favorite ice cream…

Q: According to the Centers of Disease Control, about 21% of American young people between the ages of…

A: The random variable obesity follows binomial distribution. The value of the population proportion is…

Q: 2. In the recent Census, three percent of the U.S. population reported being of two or more races.…

A:

Q: According to the Centers of Disease Control, about 21% of American young people between the ages of…

A: We have given that  Population proportion p=21% I want to find null and alternative hypothesis.

Q: In the recent census, three percent of the U.S. population reported being two or more races.…

A: From the given information, Consider, p1= The Proportion of North Dakotans who are reported being of…

Q: A researchers claims 45% of couples have children. They conduct a hypothesis test and reject the…

A: Type I Error : Reject H0 when H0 is true.

Q: Why is it recommended to formulate a hypothesis so that it becomes the alternative (but not null)…

A: The null hypothesis is the hypothesis which assume there is no statistical significance between…

Q: According to the 2010 Census, 16% of people in the United States are of Hispanic or Latino origin.…

A: From the provided information, 16% of people in the United States are of Hispanic or Latino origin…

Q: According to a New York Times/CBS News poll conducted during June 24-28, 2011, 55% of the American…

A:

Q: According to a New York Times/CBS News poll conducted during June 24–28, 2011, 55% of the American…

A:

Q: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…

A: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…

Q: Country Magazine reports that celebrity MySpace accounts have an average of 4 million friends.…

A: We have given that, Mu = 4 , Xbar = 3 , n =43 . We have to find , Which is the best set of…

Q: When conducting a hypothesis test, the hypothesis that illustrates the initial claim being tested…

A: The claim being assessed in a hypothesis test is called the null hypothesis.  And alternative…

Q: According to a New York Times/CBS News poll conducted during June 24 - 28, 2011, 55% of the American…

A: For the provided data:   Let p: proportion that American adults polled said that owning a home is a…

Q: A poll reported that 32% of 195 Canadians between the ages of 25 and 29 had started saving money for…

A: The random variable started saving for retirement follows binomial distribution. There are two…

Q: The goal of research is to prove that the null hypothesis is true. True False

A:

Q: State whether it is a correctly stated hypothesis testing problem and why. (a) Ho: µ = 25, H1: µ ≠…

A: We have given that,  State whether it is a correctly stated hypothesis testing problem and why. (a)…

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: In this context, it is given that the proportion of high school seniors who felt that “getting rich”…

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.