The marketing division of a news agency took a survey of 2,540 randomly chosen people, asking them the following 2 questions: (1) "Have you visited our website this week?", and (2) "What is your age group?"   Accessed the website Age Yes No Less than 20 years 470 159 20-39 years 565 130 40-59 years 420 169 60 or more years 509 118 (a) Identify the appropriate null and alternative hypotheses: A. H0: p1 = p2 = 1/2 vs. Ha: at least one of the p's is different from 1/2 B. H0: p1 = p2 = p3 = p4 = 1/4 vs. Ha: at least one of the p's is different from 1/4    C. H0: Online news viewing is related to age vs. Ha: Online news viewing is not related to age D. H0: Online news viewing is not related to age vs. Ha: Online news viewing is related to age (b) The test statistic is 9.731. What is the p-value? (Use 4 decimals.)  (c) What is the appropriate conclusion for ? = 0.05?  (Reject Ho/ Dont reject). There is (sufficient/ insufficient) evidence that online news viewing (is/ is not) related to age.

Q: In a clinical trial of a vaccine, 10,000 children were randomly divided into two groups. The…

A: Hypothesis for given test is , H0 : p1 = p2 H0 : p1 < p2 It is left tailed test. P-value for left…

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: A survey found that 38​% of 822 randomly sampled teens said that their parents checked to see what…

A:

Q: Minnesota had the highest turnout rate of any state for the 2012 Presidential election (United…

A: Given : x1 = 663 n1 = 884 x2 = 414 n2 = 575

Q: In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20…

A:

Q: According to the Centers of Disease Control, about 20% of American young people between the ages of…

A:

Q: The following is a table showing the actual results from a poll when politicians where asked if they…

A: (a) State the hypotheses. Null hypothesis: Alternative hypothesis:

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: In 1942, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A:

Q: According to a University Center for Logistics Management, 11% of all merchandise sold in the United…

A:

Q: In performing a hypothesis T-test, the p-value was 0.00046 and the significance level was 5%.  What…

A: Given,   P-value: 0.00046 Level of significance = 0.05   The objective is to find the conclusion.

Q: 1.Respond to the following questions in accordance with characteristics of hypothesis testing.…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: A newsletter publisher believes that over 68% of their readers own a personal computer. Is there…

A: According to the provided information, a newsletter publisher believes that over 68% of their…

Q: In a recent Super Bowl, a TV network predicted that 43 % of the audience would express an interest…

A: Consider that p is the true proportion of audience, who would express an interest in seeing one of…

Q: Are Republicans just as likely as Democrats to display the American flag in front of their residence…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: In a recent Super Bowl, a TV network predicted that 17 % of the audience would express an interest…

A: Let x be the number of people would watch one of the television shows. Here, x=31 and n=141 people…

Q: Given that the P-value for the hypothesis test is 0.000 when rounded to three decimal places, what…

A: The P-value is 0.000 and the level of significance is 0.05. Here, P-value is less than the level of…

Q: Massachusetts Institute of Technology grants pirate certificates to those students who successfully…

A: Claim: Test the claim that those students who go on to earn pirate certificates are able to hit a…

Q: Which of the following is the correct way of stating the null hypothesis of the given problem?

A: Test is that whether there is a relationship between the post-test scores of students in Algebra and…

Q: 7. According to the February 2008 Federal Trade Commission report on consumer fraud and identity…

A: Solution: Given information: n= 1435 Sample size of complaints  x= 322 complaints of identity theft…

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: A newsletter publisher believes that under 48%48% of their readers own a personal computer.  Is…

A: Solution: Let p be the proportion of the readers own a personal computer. From the given…

Q: In a clinical trial of a vaccine, 10,000 children were randomly divided into two groups. The…

A:

Q: After a product recall, a company solicits feedback from a random sample of 100 customers regarding…

A: Chi square test

Q: 7. Given the following hypotheses: Ho: µ 50 with the following information: n= 400, = 50.7 , Test…

A:

Q: Because 25 percent of the students in my morning statistics class watch eight or more hours of…

A: 25 percent of the students in my morning statistics class watch eight or more hours of television a…

Q: The following are the average grade of a sample of 20 Senior High School students for the first…

A: Given that  Sample size n =20 Population mean μ =90

Q: 4. Based on the "Structure of a Hypothesis Test", fully describe the hypothesis test for the…

A: It is found that only 52 out of 1000 bushels of his crop are lost to insect infestations. Here,…

Q: Are Republicans less likely than Democrats to display the American flag in front of their residence…

A: Given: Sample sizes: n1=600n2=661 Number of Republicans who display the American flag X1=418 Number…

Q: 4. A computer program has produced the following output for a hypothesis-testing problem: Difference…

A:

Q: 13. What are the null and alternative hypotheses, and level of significance for the hypothesis test…

A:

Q: The researcher was interested in examining whether there was a significant difference between (a)…

A: A Hypothesis is an assertion (or) statement about the population parameter  θ The following are the…

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: Given the following null and alternative hypotheses Ho: H1 2 H2 together with the following sample…

A: Sample 1   n1=18 x1=565S1=28.9 sample 2 n2=18 x2=578S1=26.3 α=0.05Sp=27.631

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: 55% of students entering four-year colleges receive a degree within six years. Is this percent…

A: Given,sample size (n)=256and X=161sample proportion(p^)=Xn=161256=0.6289α=0.10

Q: A business journal investigation of the performance and timing of corporate acquisitions discovered…

A: Solution: Let X be number of firms announced one or more acquisitions during the year 2000 and n be…

Q: We would like to test the claim that more than 15% of households use email in the U.S. In a survey,…

A: GivenTh claim is that more than 15% of households use email in the U.S

Q: Determine the null and alternative hypotheses based on the following: According to the Centers for…

A:

Q: 57% of students entering four-year colleges receive a degree within six years. Is this percent…

A:

Q: The mathematics department at one university reports that the failure rate for College Alge is no…

A: Type I error= Rejecting the null hypothesis when it is TRUE. Type II error = Fail to reject null…

Q: A psychologist claims that more than 5.8 percent of the population suffers from professional…

A: Alternate Hypothesis is the hypothesis claimed by the researcher   Therefore, H1: p>5.8%

Q: 14% of all college students volunteer their time. Is the percentage of college students who are…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: The National Longitudinal Study of Adolescent Health interviewed a random sample of 4877 teens…

A: Note: Since the two-way table and answer choices are missing we have provided the general answer for…

Q: According to a report published last year by Pew Research, 23% of all American adults lived in a…

A:

Q: a) Identify the null and alternative hypotheses? Ho: ? v H1: ? b) What type of hypothesis test…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Express the null hypothesis and the alternative hypothesis  in notation form in the following…

A: To express the Null hypothesis and Alternative Hypothesis in notation form for the given statment…

Q: The proportion of business improvement loan applications turned down in this country is equal to 15%…

A: According to the given information in this question The null hypothesis is   H0 : p = 0.15

Q: a) What are the correct null and alternative hypotheses in this situation? A) Ho: H= 40 vs. Ha:u< 40…

A: mu = 40xbar =38 n = 100 s= 9.5

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.