Never Married People The percentage of males 18 years and older who have never married is 30.4. For females, the percentage is 23.6. Looking at the records in a particular populous county, a random sample of 250men showed that 88 had never married and 52 of 200 women had never married. At the 0.05 level of significance, is the proportion of men greater than the proportion of women? Use the P-value method and let p1 be the proportion of men. Make a decision and summarize your answer.

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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…

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A: Given Hypothesized pop. proportion, p0=0.69Favorable cases,x=146Sample size,n=193Sample…

Q: 2ndP1] INSTRUCTION: Solve for the following. Show your complete solution and emphasize your final…

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Q: You sample 200 men, and 70% own cats.You sample 160 women, and 15% own cats.Find the test statistic,…

A: Obtain the value of the test statistic. The value of the test statistic is obtained below: From the…

Q: Here are several z-scores.  Which person was closest to average? Ahab: Z = +1.2 Brianna: Z = -0.8…

A: Given z scores: Ahab: Z = +1.2 Brianna: Z = -0.8 Cecilia: Z = -1.4 Darnell: Z = +0.7 Evelyn: Z =…

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Q: A sample consists of the following n = 6 scores: -2, 3, -3, 1, -3, 4 What is the Z-score for the raw…

A: Given data set is -2,3,-3,1,-3,4sample size(n)=6

Q: With 79% of adults in a country believe there are aliens. You select 5 randomly. What is the average…

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Q: The table below summarizes the  results of a survey in which randomly selected people were asked how…

A: It is needed to test, whether the feelings on medical marijuana and gender are independent or not.

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A: sample size, n = 120 30 learners reported that they smoke Proportion of learners who reported that…

Q: The time it takes for an airline to get the luggage to the airport baggage carousel after a flight…

A: Let X: The time takes for the luggage to reach the airport baggage carousel.X has a uniform…

Q: ​Claim: Fewer than 92​% of adults have a cell phone. In a reputable poll of 1172 adults, 86​% said…

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A: The hypothesized proportion is 0.80.

Q: The Statistics Games are played by a large number of students across the county. Last year, 32% of…

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Q: In a survey of 400 items in a production line, it was discovered that 10% are defective. What is the…

A: Given the survey of 400 items in a production line.The percentage of defectives is 10%,Let n = 400…

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: Denote p1, p2 as the true population proportions of men and women who own cats, respectively.

Q: Use the five-step procedure to test the research hypothesis that the mean weight in men in the…

A: H0 : ? =191 H1 : ? >191

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A: The variables are gender and satisfaction level.

Q: Please answer Question E Below is a sample of 64 responses of a survey of Ward 3 residents in…

A: Given,n=64p=0.69mean(μ)=0.69standard deviation(σ)=p(1-p)nσ=0.69(1-0.69)64σ=0.0578

Q: Below we have the mean fitness score and sample size for three samples of participants:   Sample…

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Q: Q10. The length of parts produced by which lathe machine satisfies the normality assumption based on…

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A: Here in a one study, researchers sampled over 100,000 first-time candidates for the certified public…

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A: Given,   Right Left Total STEM, Yes 6 1 7 STEM, No 7…

Q: A sample of nine tourists indicated how much they spent on accommodation per night (in dollars) at a…

A: The given data is as follows:313.6, 151.6, 598.5, 222.7, 293.9, 272.6, 198.5, 382.0, 188.7

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Q: In a sample of 500 parts produced by a grinding machine, 396 parts were defective. A test is…

A: given:   Sample size n = 500 Number of defective parts = x = 396

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A: The hypothesized proportion is 0.24.

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Q: A survey of 1195 CEOS finds that 717 believe the economy will improve next year. We are trying to…

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Q: A researcher wishes to see if there is a difference in the number of stories in the tall buildings…

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Q: 2: The median age of the children is: 29 30.5 28.5 28

A: Given ages are, 36,42,18,32,22,22,25,29,30,31,19,24,35,29,26,36,24,28   Sort the data in Ascending…

Q: A survey of 100 fatal accidents showed that 26 were alcohol related. Find a point estimate for p,…

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Q: u refers to the population mean while x refers to the sample mean. O A. True O B. False

A: Givenμ refers to the population mean while x bar refers to the sample mean

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

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Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: From the provided information,

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

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Q: Two samples are randomly selected from a population. One sample has n = 5 and the second has n = 30.…

A: In this case, there are two samples. One sample has size of n = 5 and another has size of n = 30.

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.