From the Gaussian error curve, what is the probäbility From population lies between +o and +20 ? Given that area under Gaussian curve for + o= 68.3% and + 20= 95.4 % 30.65 % 20.22 % 13.6% O 34.2 % O47.7 %

Q: 1. Suppose that the amount of a drink in a can is a normal random variable with mean u = 300ml and…

A: We have given that  X~N(mu,sigma^2) mu=300, sigma =8 , sample size n=4 Z-score =(x - mu)/sigma

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Q: A sample of size  171  171  will be drawn from a population with mean  159  159  and standard…

A: The provided information are: Sample meanx¯=159Sample sizen=171Population standard deviationσ=73.17

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A:

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A: From the given information we find the mean and sd

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A: In this case, we need to fill the blank in the given statement.

Q: If the random variable X is normal with mean 2 and standard deviation 2, n what is P(X² – 4X < 1). -

A:

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A: GivenMean(μ)=13.0standard deviation(σ)=1.5

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A: The mean and standard deviation are 5.02g and 0.30g, respectively.

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A: Given ,  μ0 = 9 and μ1 = 10.15 standard deviation σ = 3.003  n = 25  α = 0.05.

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A: From the provided information, Population standard deviation (σ) = 4.1 mm Margin of error (E) = 1.1…

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A: Solution Dear students , multiple unrelated question are given ,so we answer the first question…

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A:

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A: Note: "Since you have posted a question with multiple sub -parts, we will solve first three sub…

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A: We first write P(|X − 11| ≤ 1) without using absolute sign

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A: 1) The claim of the study is : The best button on the market lasts an average of 1200 hours.  The…

Q: Assume that in 2009 the ABC stock returns will be normally distributed with a mean return of 1.7​%…

A: Let us denote: X=in 2009 the ABC stock returns Given that X follows a normal distribution with…

Q: 2.The average salary of bank managers in a certain city is $85,600 pesos per hour with a standard…

A: We have given that.   X~N( μ , ?^2 )   μ =85600, ? =22400   Z-score =( x - μ )/?

Q: Scores of the first test in Econ 261 follow a normal distribution with mean 70 and standard…

A: Let X be the score of the first test in Econ. X follows normal distribution with mean 70 and…

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A: From the provided information, Mean (µ) = 14.5 in Standard deviation (σ) = 1.1 in Let X be a random…

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A: 1) Null hypothesis: The average weight has gone down. H0 : μ ≥ 200. Alternative hypothesis: Ha : μ…

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A: The alpha (α) is also known as the level of significance.

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A:

Q: Scores of the first test in Econ 261 follow a normal distribution with mean 70 and standard…

A: Let X be the score of the first test in Econ. X follows normal distribution with mean 70 and…

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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: The parameters are estimated as follows: EX=αβ=nVX=αβ2=2nβ=VXEX=2nn=2α=n2

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Q: The random sample X is normally distributed with mean 50 and standard deviation 18. If n=324,…

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Q: Scores of the first test in Econ 261 follow a normal distribution with mean 70 and standard…

A: Let X be the score of the first test in Econ. X follows normal distribution with mean 70 and…

Q: Scores of the first test in Econ 261 follow a normal distribution with mean 70 and standard…

A:

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A: Given that  X is a binomial random variable. Number of trails (n) = 196 p=0.252   We know that  q=…

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A:

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A: Introduction: Denote μ as the true population mean mileage, which is claimed to be, μ0 = 26 mpg. The…

Q: a. Do the results indicate a significantly higher estr- mated speed for the "smashed into" group?…

A: The solution is given as follows-

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.