Claim: Fewer than 94​% of adults have a cell phone. In a reputable poll of 1148 ​adults, 88​% said that they have a cell phone. Find the value of the test statistic. The value of the test statistic is   nothing. ​(Round to two decimal places as​ needed.)

Q: You want to determine if the graduation rate of different than the known national graduation rate.…

A: The researcher is interested to determine if the graduation rate of high-school students is…

Q: You would like to conduct a survey to estimate the proportion p of consumers who like a new brand of…

A:

Q: According to a polling organization, 23% of adults in a large region consider themselves to be…

A: Provided information is, According to polling organization, 23% of adults in a large region consider…

Q: Claim: More than 53% adults would erase all of their personal information online if they could. A…

A:

Q: Claim: Most adults would erase all of their personal information online if they could. A software…

A:

Q: A publisher reports that 49% of their readers own a personal computer. A marketing executive wants…

A: The objective of this question is to determine the P-value of the test statistic in a hypothesis…

Q: Claim: Fewer than 83% of adults have a cell phone. In a reputable poll of 1143 adults, 78% said that…

A: Sample size(n)=1143 Population proportion(P)=0.83 Sample proportion(p^)=0.78

Q: The mode score on a statistics exam was 83. Which of these interpretations is correct? A.More…

A: Given information Mode score on a statistics exam = 83 Mode = The number having highest frequency is…

Q: A teacher claims that over 11% of maths students are married. In the survey at the beginning of…

A: Answer: From the given data, Population proportion (P) = 11% = 0.11 Sample size (n) = 50 Sample…

Q: 4. Mark the three quartiles on the histogram below. Please explain why, how, etc., you made that…

A: The histogram for the income in dollars is given in the question.The three quartiles need to be…

Q: The owner of a local bar specializing in alternative music wanted to determine the average age of…

A: t 95% confidence level, the z value is 1.96 which can be obtained by using the standard normal…

Q: Claim: Fewer than 91% of adults have a cell phone. In a reputable poll of 1085 ​adults, 83​% said…

A:

Q: A publisher reports that 49% of their readers own a personal computer. A marketing executive wants…

A: The objective of this question is to determine the P-value of the test statistic in a hypothesis…

Q: In a CBS poll of 1289 adults, nationwide, asking whether they favor or oppose teacher and school…

A:

Q: The value of the test statistic is (Round to two decimal places as needed.)

A: It is given that  Claim: Fewer than 91% of adults have a cell phone. Population proportion, p = 91%…

Q: Fewer than 94% of adults have a cell phone. In a reputable poll of 1130 adults, 87% said that they h…

A: Sample size n =1130 Sample proportion p^=0.87

Q: Use technology to perform two-sample t-test to determine whether there is a difference in the mint…

A: Two sample t -test    To determine whether there is difference in the mint dates and the values of…

Q: Claim: Fewer than 91% of adults have a cell phone. In a reputable poll of 1199 n​adults,82​% said…

A: Given information: p=0.91n=1199p^=0.82

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A:

Q: Claim: The proportion of children who play sports is less than 53%. Sample statistics include n =…

A: Solution-: Given: We find, test statistic,

Q: Marketers believe that 93% of adults in the Philippines own a mobile phone. A mobile phone…

A: Givensample size(n)=250x=220sample proportion(p^)=xn=220250=0.88significance level(α)=0.05

Q: A report shows that 32% of citizens want to move out of theirneighborhood. An alderman wants to test…

A: The objective of the question is to identify the appropriate statistical test to determine if the…

Q: Consider any survey.  If you want to be specific, think about polling people if they prefer Coke or…

A:

Q: 23% of people mind if others smoke near a building entrance. A researcher thinks it has…

A: Given that p= 0.23 , X = 51, N = 100

Q: Claim: Most adults would erase all of their personal information online if they could. A software…

A: Solution: From the given information, p-hat = 0.61 and n = 593. The claim is that most adults would…

Q: According the April 12, 2017 Pew Research survey, 58% of Americans approve of U.S. missile strikes…

A: (3) Determine whether the normal approximation can be used with the given distribution or not?…

Q: ces ons Use the sample data and confidence level given below to complete parts (a) through (d). A…

A: from given data n=1087 x=562

Q: C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals should have…

A: Given information: GSS 2014 and GSS 2018 respondents were asked their opinion on whether…

Q: In order to get the mean price of homes selling in San Diego, you use 50 homes to determine the…

A: Population : Population is a group of individuals, items, units or subjects  which is under…

Q: Claim: More than 53% adults would erase all of their personal information online if they could. A…

A:

Q: Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1233 adults, 88% said that…

A: n=1233 P=0.93 P-cap=0.88

Q: America OnLine published a survey question. Among the 2,300 Internet users who responded, 20%…

A: From the given information, America OnLine published a survey question. Among the 2,300 Internet…

Q: What is the name of the test used?

A: H0 : Die is fair H1 : Die is not fair

Q: No written by hand solution and no image A software company is interested in improving customer…

A: Population proportion, Sample size, Number of customers who were satisfied,

Q: An insurance company crashed four cars of the same model at 5 miles per hour. The costs of repair…

A: Given problem Given that

Q: Claim: Fewer than 91% of adults have a cell phone. In a reputable poll of 1101 adults, 82% said that…

A:

Q: A publisher reports that 78 % of their readers own a laptop. A marketing executive wants to test the…

A: Sample of size(n)=120Population proportion(P)=0.78Sample proportion()=0.71

Q: The seniors in my math classes were asked about whether they would pay for either a senior trip or a…

A: The question is about categorical data analysis Given :   To test : A senior trip is more popular…

Q: A software company is interested in improving customer satisfaction rate from the 77% currently…

A: Solution: Given data p = 0.77 sample size (n) = 248 x = 202 Sample Proportion is given  by; (p̂) =…

Q: 2. For Americans using library services, the American Library Association claims that at most 70% of…

A: Given: The random sample of patrons selected are n=100. The number of patrons who borrowed books are…

Q: Aččórding tó à pólling órgánizátión, 22% óf ådults in á lárgé régión čónsidér thémšélvėš tó bé…

A: Given that, p= 22% = 0.22 And sample size, n= 200

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.