According to one source, 1 in 7 Americans struggled with hunger in a recent year. Two Americans are selected at random and are assumed to be independent of each other. What is the probability that both Americans struggle with hunger? (Enter your probability as a fraction.)

Q: escription Study 1: A study of 300 high school students was done. Half of them were instructed to…

A: Given data  A study of 300 high school students was done. Half of them were instructed to drink soda…

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A: It is needed to test the claim that among couples, males speak more words in a day than females.

Q: Consider the following data set:…

A:

Q: Ages Number of students 15-18 19-22 23-26 27-30 31-34 35-38 5 2 2 Cumulative Frequency 5 8 5 Based…

A: From the provided information, Ages Number of students 15-18 5 19-22 2 23-26…

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A: Given Solution:

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Q: Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval…

A: Given Sample size=n=166 Number of successes=x=78 Confidence interval=99%

Q: Two random samples were taken from distinct populations. The sample from population one was of size…

A: Suppose p1 is the true proportion of population one and p2 is the true proportion of population two.

Q: The General Social Survey is an annual survey given to about 1500 U.S. adults selected at random. A…

A: Given: Number of graduates respondents(n1)=222Number of graduates respondents that said Very…

Q: if necessary.

A: a) Regression line with respect to x1: So, the line of best fit is: ŷ = 48.36 + 1.89x1   y =…

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A: From the provided information, Sample size (n) = 10 Level of significance (α) = 0.05

Q: yes please can you help me find D

A: d) The random variable has a continuous uniform distribution with 10 < X < 20.

Q: The Hodge Office Supply Company makes pins that are packaged and sold in bags. There is an accepted…

A: The question is about quality control Given : Designed net weight of bags of pins = 7 oz Accepted…

Q: what is teh regression equation  for  (2,44), (5,66), (4,57), (8,86) ,(5,67) where x is snowfall and…

A: Given data is(2,44)(5,66)(4,57)(8,86)(5,67)where x=snowfally=yield x (snowfall) y (yield) 2 44…

Q: One measure of knowledge of a language is the size of someone's vocabulary. Certain digital language…

A: The following information has been given: n1=20        x¯1=2800          s1=600n2=28        x¯2=2200…

Q: If a population has a mean of 24.6 and a standard deviation of 66.4 then a sampling distribution for…

A: Given data mean=24.6 standard deviation=66.4 n=43

Q: 4. The average salary for first-year teachers is $27,989. Assume the distribution is approximately…

A: Given,mean(μ)=$27,989standard deviation(σ)=$3250

Q: The waiters in a restaurant receive an average tip of $20 per table with a standard deviation of $5.…

A: Given,mean(μ)=$20standard deviation(σ)=$5

Q: If E₁, E₂ are two events of a sample space S such that E, E₂, then P(E₂-E) 19 P(E)- P(E)

A:

Q: The owner of Showtime Movie Theaters, Inc., used multiple regression analysis to predict gross…

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Q: Select the true statement(s). In a hypothesis test concerning a population mean when the population…

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Q: A researcher is studying the average cost of traveling for a college student. As part of their…

A: n = 130 X = 1180 s = 535 E = 50 Formula Used: Sample size n = t×sE2

Q: ease in assembly time, while Process 2 is the standard process used 1 several years. Assembly times…

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Q: Use the applet below to select a random sample of 9 babies from the town. Assume μ = 3,500. Repeat…

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Q: Cadmium, a heavy metal, is toxic to animals. Mushrooms, however, are able to absorb and accumulate…

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Q: A researcher is looking at a new marketing campaign for a product. After 200 people watched the…

A: Given: After 200 people watched the marketing campaign about 60 percent liked the product. Prior to…

Q: Consider the following election. Number of Voters 16 11 12 4 1st Choice B D A B 2nd Choice A A D D…

A: Plurality method is the type of method that used to decide the election result. In the plurality…

Q: Assuming that the population is normally​ distributed, construct a 95​% confidence interval for the…

A: We have given that For Sample A :- 1,2,4,4,5,5,7,8

Q: following s

A: Bootstrap sample: A sample that is made under bootstrapping technique. Bootstrapping technique: A…

Q: In N(2, 4) the mean is 2, the standard deviation is 4. Two standard deviations left of the mean is…

A: It is given that the mean is 2 and the standard deviation is 4.

Q: The sales for Sunflowers Apparel, a chain of upscale clothing stores for women, have increased…

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Q: 1. What characteristics must a normal probability distribution have to be a standard normal…

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Q: Problem 13 page 552 A BMW car dealer in Sicilia, Italy, has the following monthly new car sales data…

A: a) Solution:                     Yes there is an increasing trend

Q: If n=400 and X=100​, construct a 95​% confidence interval estimate for the population proportion.

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Q: Using multiple linear regression, estimate the value of a in the given regression model. Use 4…

A: Introduction: It is required to estimate the value of a, by fitting a multiple linear regression…

Q: The distribution of IQ scores of the population is normally distributed with a mean of 100 and a…

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Q: Two random samples were taken from distinct populations. The sample from population one was of size…

A: Given n1=92 n2=69 X1=12 X2=28

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Q: The life spans of three randomly selected tires are 32,100 ​miles, 41,900 ​miles, and 37,000 miles.…

A: By empirical rule: it says that for a normal distribution all observed data lies within three…

Q: 2. Refer to the chart below for the following questions. Unemployment rate 8% 7% 6% 5% 4% 3% 2% 1%…

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Q: A consumer products testing group is evaluating two competing brands of tires, Brand 1 and Brand 2.…

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Q: A study of the effect of television commercials on 12-year-old children measured their attention…

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A: * SOLUTION :-  (4) From the given information the calculation is given as below.

Q: The standard deviation, S, for the annual medical cost of 24 households was found to equal $1689…

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Q: eh following was collected (4,64) (7,81) (2,50) (9,94) and (4,63). What is teh regression equztion?…

A: Slope and Intercepts are two regression coefficients. Regression explains the relationship between…

Q: Study 1: A study of 300 high school students was done. Half of them were instructed to drink soda…

A: Given data A study of 300 high school students was done. Half of them were instructed to drink soda…

Q: A consumer products testing group is evaluating two competing brands of tires, Brand 1 and Brand 2.…

A: The following information has been given: Brand 1 Brand 2 Difference (d) (Brand 1 -Brand 2)…