The hourly wages in a particular industry are normally distributed with mean $13.20 and standard deviation $2.50. A company in this industry employs 40 workers, paying them an average of $12.20 per hour. Can this company be accused of paying substandard wages? Use an a = 0.01 level test.

Q: n this scenario, what is the test statistic? A linguist believes the average age children learn a…

A: Given: n= 21.0 ,x̄= 9.2 ,s= 2.5 µ= 10.0 ,degree of freedom= 20.0

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A:

Q: he SAT scores are normally distributed with mean 1500 and standard deviation 300. What is the cutoff…

A: P(X>x)=10% P(X>x)=0.10 x=?

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A: From the given information, Mean = $1.62 gallon Standard deviation =8 cents =$0.08 gallon (since 100…

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A: Given Information: Population mean (u) = 4.5 years Sample size (n) = 47 Sample mean (x) = 5.1 years…

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A: Given that  They have a mean of 50 and a standard deviation of 10.

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A: Probability distribution: A probability distribution function is the statistical function that…

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A: Given that, The effect size is a measure of the magnitude of a treatment effect in standard…

Q: How good was Wilt Chamberlain's 1961-1962 season compared to the rest of the NBA

A: Given that How good was Wilt Chamberlain's 1961-1962 season compared to the rest of NBA Basketball…

Q: Rick operates a concession stand serving Iced Tea at the Los Angeles County Fair.  Ben is the only…

A:

Q: A study has been conducted of the airspeed of various bird species. You would like to specify the…

A:

Q: Consider a dataset with standard deviation 2, mean 6.2, and a total of 186 data points. What is the…

A: The given data is - Standard deviation (σ)=2 Mean(x)=6.2 Sample size(n)=186

Q: Almost all medical schools in the United States require applicants to take the Medical College…

A: It is given that the scores of all applicants on the biological sciences part of the MCAT were…

Q: Almost all medical schools in the United States require applicants to take the Medical College…

A:

Q: Students at a major university are complaining of a serious housing crunch. They complain that many…

A: From the provided information, Mean (µ) = 16.1 Standard deviation (σ) = 4.0 X~N (16.1, 4.0)

Q: Suppose exam scores in a statistics class are normally distributed with a mean of 89 and standard…

A: Given data, Mean=89 sd=8 P(X<x)=0.45 x=?

Q: are normally distributed with a mean of 100 and a standard deviation of 15. What IQ is in the 90th…

A: Kwe have to find out given probabiity..

Q: 1. The standard deviation provides an overall measurement of how much participants' scores differ…

A: Given data: The standard deviation provides an overall measurement of how much participants' scores…

Q: The grades of an examination whose mean is 72 and whose standard deviation is 12 are normally…

A: Given data,μ=72σ=12

Q: Entrance exam scores at Cititon University are normally distributed with a mean of 310 and a…

A:

Q: A company has rolled out a new process for sales people to use. They were able to go back into the…

A: Given, We are given that, Population mean = μ = $108 Population Standard devation = σ = $12 Sample…

Q: If this​ 3-year-old boy grows up to be a man with a height at the same​ percentile, what will his…

A: The population mean is 70 and population standard deviation is 3.

Q: If New Hampshire's population was 1.4 million in 2018 and there were 1.3 million motor vehicle…

A:

Q: f the class average is 84

A: Here it is given that - Mean (μ) = 84 Standard Deviation (σ) = 5 Let, X be a random variable which…

Q: uppose that the navy requires that the sailors on its submarines be no taller than 72 inches.  Also…

A: P(X<72)=?