what is the value of the test statistic

Q: One prominent physician claims that 80% of those with lung cancer are chain smokers. Compute the…

A: Here, we can consider that it is Binomial distribution because  80% of people has lung cancer and…

Q: The U.S. Center for Disease Control reports that in year 1900, the mean life expectancy is 47.6…

A: Given  nw=117, x¯w=46.7 and  sw=11.4 And           nnw=86, x¯nw=38.4 and  snw=15.4

Q: The election results were announced in a country. The number of seats in state Mozi had a mean of…

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Q: The tallest living man at one time had a height of 261 cm. The shortest living man at that time had…

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Q: The U.S. Center for Disease Control reports that the mean life expectancy was 47.6 years for whites…

A: From the provided information,

Q: Suppose that the distribution of touchdowns (in football) is normally distributed with a mean of 250…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: 2, 5, 9, 13, 17, 202. Find the standard deviation for the above sample data.

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Q: Marine biologist at Nova Southeastern University spent three months on a research expedition tagging…

A: The given information is: For females,  Sample sizen1=142 Sample meanx¯1=68.3 Sample standard…

Q: The mean weight of a popular breed of bull is 1135 pounds with a standard deviation of 97 pounds.…

A: According to the given information in this question We need to find the value of standard error

Q: The sample of five companies in the aerospace industry was surveyed as to their return on investment…

A: We have to find sample variance s2  and sample standard deviation...

Q: Doug has 1,000 bottle caps in his collection compared to Melissa's 2000 bottle caps. If the average…

A: Given,mean(μ)=1250standard deviation(σ)=500Doug bottle cap collection(X)=1000Melissa's bottle cap…

Q: The U.S. Center for Disease Control reports that the mean life expectancy was 47.6 years for whites…

A: a.) The Hypotheses The hypotheses are: H0​:μW​=μNW​H1​:μW​=μNW​ b.) The Test Statistic The…

Q: A federal study reported that 7.5% of the U.S. workforce has a drug problem. A drug enforcement…

A: (a1)The number would you expect to have a drug problem is,

Q: Of the 500 people who took the civil servant acceptance test in one government agency, the average…

A: We have given that  Mean=67.5 Standard deviation=5.2  Find A) P(55.6<x<61)B) P(x>65)

Q: A businessman calculated the average price of variety A rice per kilo at ₱32.00 with a standard…

A: First calculate sample mean and sample standard deviation for rice B varieties using Excel

Q: There are eight patients waiting in a doctor's waiting room.  They have been waiting for 9 minutes,…

A: x x2 9 81 2 4 5 25 4 16 12 144 7 49 8 64 11 121 ∑x = 58 ∑x2 = 504 n = 8

Q: A study conducted by the Center for Population Economics at the University of Chicago studied the…

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Q: The honors program at Brads University only except students with an entrance score exam over 400.…

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Q: A factory makes headache tablets. Each tablet is supposed to weigh 250mg. If a tablet weighs less…

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Q: A World Health Organization study of health in various countries reported that in Canada, systolic…

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Q: Five cars of the same year and model were tested for gas mileage in highway driving and the results…

A: The data are X: 30,39,33,31,27

Q: Find standard deviation of each sampling distribution

A: here  given, According to a gallup survey of boys 77% of boys had played computer games in the past…

Q: According to the American Red Cross, 11.6% of all Connecticut residents have Type B blood. A random…

A: The question is about discrete probability distributionGiven :Probability of all CT residents have…

Q: A​ town's January high temperatures average 34°F with a standard deviation of 8°​, while in July the…

A: The information provided in the question are as follows : For January :- Mean (µ1) = 34 Standard…

Q: A football coach claims that the average weight of all the opposing teams’ members is 210 pounds.…

A: Consider that μ is the true average weight of all the opposing teams’ members.

Q: Woodland and Clear Beach are schools in different states, Alan is a student at Woodland and is 56…

A: a) Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: The average McDonald's restaurant generates $2.2 million in sales each year with a standard…

A: The random variable sales follow normal distribution. We have to test whether the average sales…

Q: due to the increasing price of apartments each year, houston chronicle reported that rent of 1 bed 1…

A: Given that  μ=1200σ=500n=20 Consider, the probability that the price is more than 1100 is,…

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

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Q: The director of research and development is testing a new medicine. She wants to know if there is…

A: Assume that μ is the true average time the medicine relives pain.

Q: The luggage weight for individual air travelers on some specific route have a mean of 80 pounds and…

A: Given information: The luggage weight for individual air travelers on a specific route, measured in…

Q: A researcher gathered data on five randomly selected individuals from a data set. The ages are 25,…

A: The data set of ages is25,27,20,21,29sample size(n)=5

Q: Most graduate schools of business require applicants for admission to take the Graduate Management…

A: Given that  μ=527σ=112

Q: t is known that the average time required to complete a test exam is 80 minutes and the standard…

A: Given Information: Mean μ=80 min Standard deviation σ=10 min. To find how many minutes should the…

Q: The tallest living man at one time had a height of 220 cm. The shortest living man at that time had…

A: Given that  mean of 173.88 cm and a standard deviation of 5.13 cm tallest living man at one time had…

Q: Of the 200 American film enthusiasts, the average age is: 30 years, while the standard deviation is…

A: The normal distribution in the center is generally denser and basically less dense at tails. There…

Q: 1900 in a certain county. Of the 124 whites, the mean life span was 45.3 years with a standard…

A: Given Data : For Sample 1 x̄1 = 45.3 s1 = 12.7 n1 = 124 For Sample 2…

Q: A study was made to determine if the subject matter in a physics course is better understood when a…

A: The following information has been provided: x¯1=85s1=4.7n1=11x¯2=79s2=6.1n2=17 It is assumed that…

Q: Who has the larger dog relative to their breed?

A: It is given that For Golden Retriever, X = 70.2, mean = 67 and SD = 2.5 For St Bernard, X = 215,…

Q: students made an average grade of 85 with a standard deviation of 4.7, and in the section without…

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Q: The tallest living man at one time had a height of 244 cm. The shortest living man at that time had…

A: Given : Heights of men at that time had a mean of 174.73 cm and a standard deviation of 6.23 cm.

Q: The speed of cars driving past Johnson City High School, on 666 Reynolds Rd, were recorded over one…

A: In this intriguing analysis centered around traffic speeds near Johnson City High School, the…

Q: A student obtained the mean and standard deviation of 100 observations as 40 and 5 respectively. It…

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Q: The U.S. Center for Disease Control reports that in year 1900, the mean life expectancy is 47.6…

A: White:Sample size Sample mean Sample standard deviation Non-whites:Sample size Sample mean Sample…

Q: From the states data set, get the descriptive statistics for the violent crime rate. For this…

A: given data