Suppose that the mean hourly wage of all employees in a large semiconductor manufacturing facility is $50 with a standard deviation of $10. Let X be the mean hourly wages of certain employees selected randomly from all the employees of this manufacturing facility. If a random sample of 256 employees is selected, then the probability that the mean hourly wages X falls between $48 and $52 is: O 0.8904 0.9544

Q: Suppose the average number of returns processed by employees of a tax preparation service during tax…

A: Solution: Given information: n= 36 Sample size  μ=11 Population mean σ=4  Population standard…

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A: Given,mean(μ)=800standard deviation(σ)=40

Q: Suppose that for a normal random variable X, we have a mean of µ=10 and a standard deviation of σ=3.…

A: As per guideline expert have to answer first three subpart only.

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A:

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A:

Q: What is the standard deviation of the he final exam grade distribution for all students in the…

A: Given grade (x) probability (p)  x*p x2  x2 *p 0 0.03 0 0 0 1 0.08 0.08 1 0.08 2 0.17 0.34…

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A: Given: μ = 20.5 minutes σ = 15.4 minutes  n = 40

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A: GivenMean(μ)=54000standard deviation(σ)=12000sample size(n)=4

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A: We have given that,  X be the random variable from normal distribution with mean (μ) = 66.5 ,…

Q: Suppose an experiment is run with a sample of 64 items from a population with a mean of 10.2 and a…

A: Here, mean µ = 10.2, the standard deviation, σ = 0.12, and n = 64.

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A:

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A:

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A: Normal distribution, also known as the Gaussian distribution, is a probability distribution that is…

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A: Given,mean(μ)=57,800standard deviation(σ)=750

Q: Given that X is a normally distributed random variable with mean of 50 and standard deviation of 2,…

A: According to the given information, we have Mean = 50 and Standard deviation = 2

Q: 4.The average salary of bank managers in a certain city is $91,900 pesos per hour with a standard…

A: Given data is Mean(μ)=91900standard deviation(σ)=24300

Q: 1. Study reports that the average person uses 120 liters of water daily. If the standard deviation…

A:

Q: The probability distribution of a discrete random variable x is shown in the following table: x 1 2…

A: E(X)=∑Xi P(X)E(X)=1×0.22+2×0.22+3×0.37+4×0.05+5×0.14E(X)=0.22+0.44+1.11+0.2+0.7E(X)=2.67

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A: Draw the normal curve.

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A: Given Data : Population Mean,μ = 99 Population Standard Deviation,σ = 12

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A:

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A:

Q: Suppose that the average monthly revenue of flower shops is $10,000 with a standard deviation of…

A: Givensample Mean(μ)=10000standard deviation(σ)=1575Sample size(n)=9

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A:

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A:

Q: Suppose that an airline uses a seat width of 16.3 in. Assume men have hip breadths that are normally…

A: It is given that the mean is 14.5 and the standard deviation is 1.

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Q: Let X represent the amount of gasoline (gallons) purchased by a randomly selected customer at a gas…

A: Here, µ= 11.5, σ= 4. Thus, X~ N (11.5, 4). The sample size is 50.

Q: Let X represent the full length of a certain species of newt. Assume that X has a normal probability…

A: It is given that, X~N(110.8, 6.22) A sample size n=220 is to be taken. So, by the CLT, you can…

Q: 2.2% 2.2% 34.1% 34.1% 0.1% 0.1% 13.6% 13.6% μ-3σ μ-2σ μ-Ισ µ+lo ut20 µ+3o Frequency

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A: Let us denote X=the daily amounts of industrial wasteGiven that X is normally distributed with…

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Q: The probability that an individual has​ 20-20 vision is 0.16. In a class of 37 ​students, what is…

A: As per guideline expert have answer first question only dear student please upload other question…

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A: Given: The data for two types of players is shown below Varsity Players Non-Varsity Players…

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A: According to central limit theorem, for large sample (>30) or if the population follows normal…

Q: What is the standard deviation of 5 randomly selected years for the first 8 months? A. 0.9720 B.…

A: Hello. Since your question has multiple parts, we will solve first 3sub parts question for you. If…

Q: A population has a standard deviation of 16. If a sample of size 64 is selected from this…

A: Correct answer is (B) 0.6826

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.