A newspaper story claims that more houses are purchased by singles now than singles 5 years ago. To test this claim, two studies were conducted on the buying habits of singles over the past 5 years. In the first study, 400 house purchases in the current year were randomly selected and 80 of those were made by singles. In the second study, again 400 house purchases were randomly selected from 5 years ago and 54 of those were made by single people. Test the newspaper’s claim using a 0.05 level of significance. Is there sufficient evidence to support the newspaper’s claim? Let singles now be Population 1 and let singles 5 years ago be Population 2.   Step 1 of 3:  State the null and alternative hypotheses for the test. Fill in the blank below. H0: p1=p2: Ha: p1⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯p2 Step 2 of 3:  Compute the value of the test statistic. Round your answer to two decimal places. Step 3 of 3:  Draw a conclusion and interpret the decision.

Q: A 2016 Pew Research poll found that 18% of cell phone owners use their phone for conducting…

A: It is given that the total number of cell phone uses are 18%, thus the population proportion is…

Q: It is believed that 11% of all Americans are left-handed. A college needs to know the number of…

A: As per the question we have 11% of all Americans are left-handed College recorded whether the…

Q: The National Academy of Science reported that 38% of research in mathematics is published by US…

A: Solution: Given data p = 0.38 Sample size( n) = 279 x = 123 Level Of significance = 0.02 To Test the…

Q: A random sample of 113 felons convicted of nonviolent crimes in a state prison system completed a…

A: Given , n= 113 , x = 58 Here One prop Z test is applicable

Q: Ten years ago, 35% of a brokerage firm’s clients only had a single account, 25% had 2 accounts, and…

A: Solution: Given information:  n= 300 Sample size of clients k= 3 Categories  P1= 0.35 Probability of…

Q: The National Academy of Science reported that 36% of research in mathematics is published by US…

A: Given p=36%, n=278,  X=85  Level of significance ɑ=0.02

Q: es/CBS News poll sampled 523 adults who were planning a vacation during the next six months and…

A: We have 2015 as Population 1 and 2005 as Population 2. Then p1=Population proportion of Population…

Q: An anger-management course claims that, after completing its seminar, participants will lose their…

A: (1)

Q: In a previous poll, 31% of adults with children under the age of 18 reported that their family ate…

A: Population proportion, p = 0.31Sample size, n = 1199Number of successes, x = 350Significance level,

Q: The National Academy of Science reported that 33% of research in mathematics is published by US…

A: sample size(n)=280No.of articles have US authors(x)=108significance level(α)=0.01

Q: An auto shop wants to examine the proportion of customers that have to retur after an appointment.…

A: Given that  Sample sizes n1=402 , n2=319 Sample proportion p1^=0.224 , p2^=0.251

Q: It is believed that 11% of all Americans are left-handed. A college needs to know how many…

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

Q: An anger-management course claims that, after completing its seminar, participants will lose their…

A:

Q: The National Academy of Science reported that 31% of research in mathematics is published by US…

A: Given : Hypothesized proportion : p0=0.31 Claim : Proportion is different from 0.31 . Sample size :…

Q: Compute the value of the test statistic. Round your answer to two decimal places.

A:

Q: In 2016, the New York Times reported that the average American spent 50 minutes per day on Facebook,…

A: From the given information, AverageFacebook=50 Average reading, exercising, or actually socializing…

Q: In a survey of working parents (both parents working), one of the questions asked was "Have you…

A: From the provided information,

Q: It is believed that 11% of all Americans are left-handed. A college needs to know the number of…

A: 1. Here the parameter of our interest is proportion of left handed American (p) 2. Our null…

Q: Last year, the marist poll conducted a national survey of adults and found that 35% responded "A lot…

A: Null and Alternate Hypothesis: H0: Response to this question by adults nationwide has not changed…

Q: A random sample of n1 = 148 people ages 16 to 19 were taken from the island of Oahu, Hawaii, and 14…

A: a) The level of significance, denoted by α, is defined as the probability of incorrectly rejecting…

Q: The National Academy of Science reported that 37% of research in mathematics is published by US…

A:

Q: According to a study on the effects of smoking by pregnant women on rates of asthma in their…

A: Population proportion 22.2%Given sample size n=319Number of children among who developed asthma…

Q: In a survey of 1,000 women aged 22 to 35 who work full time, 555 indicated that they would be…

A: A survey of 1,000 women aged 22 to 35 who work full time were considered in which 555 indicated that…

Q: A random sample of n1 = 154 people ages 16 to 19 were taken from the island of Oahu, Hawaii, and 11…

A: The given data is as follows: For island of Oahu, The sample size n1 is 154 and the number of high…

Q: In a previous poll, 43% of adults with children under the age of 18 reported that their family ate…

A: Step 1: Determine the population proportion (p0).In the given scenario:The population proportion is…

Q: In a survey of working parents (both parents working), one of the questions asked was "Have you…

A: From the provided information,

Q: In a survey of working parents (both parents working), one of the questions asked was "Have you…

A: According to the given information here we will use z test for proportion The null and alternative…

Q: According to a study on the effects of smoking by pregnant women on rates of asthma in children, for…

A: n= 319 no of children developed asthma = x = 82Population proportion of children who developed…

Q: The National Academy of Science reported that 37% of research in mathematics is published by US…

A: we have to find test  statistics..

Q: Suppose that a poll taken 10 years ago found that 69% of parents spank their children. Suppose a…

A: Answer Sample size [n] =200p =69%   =69/100    =0.69

Q: The National Academy of Science reported that 31 % of research in mathematics is published by US…

A: p=0.31 n=188 x=74

Q: newspaper story claims that more houses are purchased by singles now than singles 55 years ago. To…

A: Given data,n1=500x1=100p1=x1n1=100500=0.2n2=500x2=81p2=81500=0.162Test statistic=?

Q: The Insurance Institute for Highway Safety issued a press release titled "Teen Drivers Often…

A: There are two independent samples which are before the ban and after the ban. We have to construct…

Q: A national survey of 1,000 adults conducted on August 2-10, 2017 from CompareCards, conducted by…

A: The survey is conducted based on 1,000 adults conducted on August 2-10, 2017 from CompareCards,…

Q: In a survey of working parents (both parents working), one of the questions asked was "Have you…

A:

Q: Based on a USA Today poll, 10% of the population believes that college is no longer a good…

A:

Q: $40-million renovation of its state fairgrounds, which included the building of a miniature golf…

A: Hypothesis testing

Q: A random sample of n1 = 157 people ages 16 to 19 were taken from the island of Oahu, Hawaii, and 12…

A:

Q: The National Academy of Science reported that 33% of research in mathematics is published by US…

A: This problem can be solved using z test for proportion. The formula for the z test statistic is…

Q: In 2016, the New York Times reported that the average American spent 50 minutes per day on Facebook,…

A: Let x¯1 and x¯2 be the sample mena time spent on Facebook and Other activities respectively. x¯1=50…

Q: A auto shop wants to examine the proportion of customers that have to return after an appointment.…

A: